Pywbemtools - A set of tools using pywbem

This package contains tools that provide a command line interface to interact with WBEM servers

The pywbemtools github page is: https://github.com/pywbem/pywbemtools.

Introduction

Pywbemtools features

Pywbemtools is a collection of command line tools that communicate with WBEM servers. The tools are written in pure Python and support Python 2 and Python 3.

At this point, pywbemtools includes a single command line tool named pywbemcli that uses the pywbem package on Pypi to issue operations to a WBEM server using the CIM/WBEM standards defined by the DMTF to perform system management tasks.

CIM/WBEM standards are used for a wide variety of systems management tasks in the industry including DMTF management standards and the SNIA Storage Management Initiative Specification (SMI-S).

The pywbemtools package includes the following tools:

  1. Pywbemcli command - provides access to WBEM servers from the command line

Supported environments

The pywbemtools package is supported in these environments:

  • Operating systems: Linux, Windows (native and Unix-like environments (ex. Cygwin), OS-X
  • Python versions: 2.7, 3.4, and greater
  • WBEM servers: Any WBEM server that conforms to the DMTF specifications listed in Standards conformance. WBEM servers supporting older versions of these standards are also supported, but may have limitations. See the pywbem WBEM servers documentation for more details.

Installation

This section describes the complete installation of pywbemtools with all steps including prerequisite operating system packages.

The easiest way to install the pywbemtools package is using pip. Pip ensures that any dependent Python packages also get installed.

Pip will install the packages into your currently active Python environment (your system Python or your predefined virtual Python environment).

It is beneficial to set up a virtual Python environment for your project, because that leaves your system Python installation unchanged, it does not require sudo rights, and gives you better control about the installed packages and their versions.

If you want to contribute to the pywbem project, you need to set up a development and test environment for pywbem. That has a larger set of OS-level prerequisites and its setup is described in the Pywbemtools development chapter.

Installation prerequisites

The Python environment into which you want to install must have the following Python packages installed:

Pywbemtools installs the pywbem package.

When using pywbem versions before 1.0.0 on Python 2, pywbem requires a number of OS-level packages, and your system must have the following commands installed:

  • On native Windows:
    • choco - Chocolatey package manager. The pywbemtools package installation uses Chocolatey to install OS-level software. See https://chocolatey.org/ for the installation instructions for Chocolatey.
    • wget - Download tool. Can be installed with: choco install wget.
  • On Linux, OS-X, UNIX-like environments on Windows (e.g. Cygwin):
    • wget - Download tool. Can be installed using the OS-level package manager for the platform.

Installation with pip

When using pywbem versions before 1.0.0 on Python 2, install the OS-level packages needed by the pywbem package as follows:

  • On native Windows:

    > wget -q https://raw.githubusercontent.com/pywbem/pywbem/master/pywbem_os_setup.bat
    > pywbem_os_setup.bat
    
  • On Linux, OS-X, UNIX-like environments on Windows (e.g. Cygwin):

    $ wget -q https://raw.githubusercontent.com/pywbem/pywbem/master/pywbem_os_setup.sh
    $ chmod 755 pywbem_os_setup.sh
    $ ./pywbem_os_setup.sh
    

    The pywbem_os_setup.sh script uses sudo internally, so your userid needs to have sudo permission.

If you want to install the needed OS-level packages manually, see pywbem prerequisite OS packages.

The following command downloads and installs the latest released version of the pywbemtools package from PyPI into the currently active Python environment:

$ pip install pywbemtools

As an alternative, if you want to install the latest development level of the pywbemtools package for some reason, install directly from the master branch of the Git repository of the package:

$ pip install git+https://github.com/pywbem/pywbemtools.git@master#egg=pywbemtools

Verification of the installation

You can verify that the pywbemtools package and its dependent packages are installed correctly by invoking pywbemcli. Invoking with the --version option displays the installed version of both pywbem and pywbemtools as shown in the following example:

$ pywbemcli --version
pywbemcli, version 0.5.0
pywbem, version 0.14.4

Standards conformance

Pywbemtools attempts to comply to the maximum possible with the relevant standards.

Pywbemtools uses pywbem for communication with the WBEM server. Therefore pywbemtools conformance to the relevant standards is defined in the pywbem standards conformance documentation.

Therefore, the level of conformance and limitations for pywbemtools is the same as pywbem except for any specific notations in this document.

Deprecation policy

Pywbemtools attempts to be as backwards compatible as possible.

Occasionally functionality needs to be retired, because it is flawed and a better but incompatible replacement has emerged.

In pywbemtools, such changes are done by deprecating existing functionality, without removing it. The deprecated functionality is still supported throughout new minor releases. Eventually, a new major release will break compatibility and will remove the deprecated functionality.

In order to prepare users of pywbemtools for that, deprecation of functionality is stated in the CLI documentation, and is made visible at runtime by issuing Python warnings of type DeprecationWarning (see the Python py:warnings module).

Since Python 2.7, DeprecationWarning messages are suppressed by default. They can be shown for example by invoking pywbemcli with the environment variable: PYTHONWARNINGS=default

It is recommended that users of the pywbemtools package run their test code with DeprecationWarning messages being shown, so they become aware of any use of deprecated functionality.

Here is a summary of the deprecation and compatibility policy used by pywbemtools, by release type:

  • New update release (M.N.U -> M.N.U+1): No new deprecations; fully backwards compatible.
  • New minor release (M.N.U -> M.N+1.0): New deprecations may be added; as backwards compatible as possible.
  • New major release (M.N.U -> M+1.0.0): Deprecated functionality may get removed; backwards compatibility may be broken.

Compatibility is always seen from the perspective of the user of pywbemtools, so a backwards compatible new pywbemtools release means that the user can safely upgrade to that new release without encountering compatibility issues.

Versioning

This documentation applies to version 0.7.3 of the pywbemtools package. You can also see that version in the top left corner of this page.

The pywbemtools package uses the rules of Semantic Versioning 2.0.0 for its version.

This documentation may have been built from a development level of the package. You can recognize a development version of this package by the presence of a “.devD” suffix in the version string. Development versions are pre-versions of the next assumed version that is not yet released. For example, version 0.5.1.dev2 is development pre-version #2 of the next version to be released after 0.5.0. Version 1.5.1 is an assumed next version, because the actually released next version might be 0.7.0 or even 1.0.0.

Compatibility

In this package, compatibility is always seen from the perspective of the user of the package. Thus, a backwards compatible new version of this package means that the user can safely upgrade to that new version without encountering compatibility issues.

This package uses the rules of Semantic Versioning 2.0.0 for compatibility between package versions, and for deprecations.

The public command line interface of this package that is subject to the semantic versioning rules (and specifically to its compatibility rules) is the CLI syntax described in this documentation.

The output formats are currently not the subject of compatibility assurances.

Violations of these compatibility rules are described in section Change log.

Reporting issues

If you encounter any problem with this package, or if you have questions of any kind related to this package (even when they are not about a problem), please open an issue in the pywbemtools issue tracker.

License

This package is licensed under the Apache 2.0 License.

Pywbemcli command

Pywbemcli provides access to WBEM servers from the command line. It provides functionality to:

  • Explore the CIM data of WBEM servers. It can manage/inspect the CIM model components including CIM classes, CIM instances, and CIM qualifiers and execute CIM methods and queries on the WBEM server.
  • Execute specific CIM-XML operations on the WBEM server as defined in DMTF standard DSP0200 (CIM Operations over HTTP).
  • Inspect and manage WBEM server functionality including:
  • Capture detailed information on CIM-XML interactions with the WBEM server including time statistics and details of data flow.
  • Maintain a file with persisted WBEM connection definitions so that pywbemcli can access multiple WBEM servers by name.
  • Provide both a command line mode and an interactive mode where multiple pywbemcli commands can be executed within the context of a WBEM server.
  • Use an integrated mock WBEM server to try out commands. The mock server can be loaded with CIM objects defined in MOF files or via Python scripts.

Pywbemcli command line interface

This section describes the command line interface of the pywbemcli command within the pywbemtools package.

Pywbemcli provides a command line interface(CLI) interaction with WBEM servers.

The command line can contain the following components:

  • COMMAND - A name of a command which may consist of:
    • <group name> <command name> for commands that are defined within groups (ex. class find).
    • <group name> (ex. class) to show group help including list of command within the group.
    • <command name> for those commands that are not part of a group. For example repl and help that are not in any command group.
  • ARGS - Arguments for a command.
  • COMMAND-OPTIONS - Options that apply only to a particular COMMAND.

Options are prefixed with the characters - for the short form or -- for the long form (ex. -n or --namespace). The other components do not begin with -.

Command groups are named after the objects the commands operate on (ex. class, instance, qualifier, server). Executing

$ pywbemcli --help
...
Commands:
  class       Command group for CIM classes.
...

returns the list of command groups under the title COMMANDS.

Commands are named after actions on these objects (ex. get, create, delete). The list of commands for each group is listed with the command pywbemcli <group name> –help.

For example, the command:

$ pywbemcli --output-format mof class get CIM_ManagedElement --namespace interop

gets class CIM_ManagedElement in namespace interop and displays it in the MOF output format. The option --output-format is a general option and --namespace is a command option.

Pywbemcli supports several modes of tab-completion, auto-completion suggestions depending on whether it is in command or interactive mode. This is detailed in the following sections.

Modes of operation

Pywbemcli supports two modes of operation:

  • Command mode: Executing standalone non-interactive commands.
  • Interactive mode: Invoking an interactive pywbemcli shell for typing pywbemcli commands.

Command mode

In command mode, the pywbemcli command performs its task and terminates like any other standalone non-interactive command.

This mode is used when the pywbemcli command is invoked with a command or command group name and arguments/options:

$ pywbemcli [GENERAL-OPTIONS] COMMAND [COMMAND-OPTIONS] [ARGS]

The following example enumerates classes in the root/cimv2 namespace of the WBEM server on localhost:

$ pywbemcli --server http://localhost --default-namespace root/cimv2 --user username class enumerate
Enter password: <password>
. . .
<Returns MOF for the enumerated classes>

In command mode, tab completion is also supported for some command shells, but must be enabled specifically for each shell.

For example, with a bash shell, enter the following to enable tab completion of pywbemcli:

$ eval "$(_PYWBEMCLI_COMPLETE=source pywbemcli)"

Bash tab completion for pywbemcli is used like any other bash tab completion:

$ pywbemcli --<TAB><TAB>
... <shows the general options to select from>

$ pywbemcli <TAB><TAB>
... <shows the command groups to select from>

$ pywbemcli class <TAB><TAB>
... <shows the class commands to select from>

Pywbemcli uses the Python click package for its command line handling. See Bash Complete in the Click documentation for additional features of the Bash tab completion of pywbemcli.

Interactive mode

In interactive mode (also known as REPL mode), pywbem provides an interactive shell environment that allows typing pywbemcli commands, internal commands (for operating the pywbemcli shell), and external commands (that are executed in the standard shell of the user).

This pywbemcli shell is started when the pywbemcli command is invoked without specifying any command group or command:

$ pywbemcli [GENERAL-OPTIONS]
pywbemcli> _

Alternatively, the pywbemcli shell can also be started by specifying the repl command:

$ pywbemcli [GENERAL-OPTIONS] repl
pywbemcli> _

The pywbemcli shell uses the prompt pywbemcli>. The cursor is shown in the examples above as an underscore (_).

The commands and options that can be typed in the pywbemcli shell are the rest of the command line that would follow the pywbemcli command in command mode, as well as internal commands (for operating the pywbemcli shell), and external commands (that are executed in the standard shell of the user):

pywbemcli> [GENERAL-OPTIONS] COMMAND [ARGS] [COMMAND-OPTIONS]

    where: COMMAND can be either a group name and
           a command (ex. class find or repl)

pywbemcli> :INTERNAL-COMMAND

pywbemcli> !EXTERNAL-COMMAND

The following example starts a pywbemcli shell in interactive mode, executes several commands, and exits the shell:

$ pywbemcli -s http://localhost -d root/cimv2 -u username

pywbemcli> class enumerate --no
. . . <Enumeration of class names in the default namespace>

pywbemcli> class get CIM_System
. . . <Class CIM_System in the default namespace in MOF format>

pywbemcli> :q

The pywbemcli shell command class get CIM_System in the example above has the same effect as the standalone command:

$ pywbemcli -s http://localhost -d root/cimv2 -u username class get CIM_System
. . . <Class CIM_System in the default namespace in MOF format>

The internal commands :?, :h, or :help display general help information for external and internal commands:

> :help
REPL help:

  External Commands:
    prefix external commands with "!"

  Internal Commands:
    prefix internal commands with ":"
    :?, :h, :help     displays general help information
    :exit, :q, :quit  exits the REPL

In addition to using one of the internal exit commands shown in the help text above, you can also exit the pywbemcli shell by typing Ctrl-D (on Linux, OS-X and UNIX-like environments on Windows), or Ctrl-C (on native Windows).

Typing --help or -h in the pywbemcli shell displays general help information for the pywbemcli commands which includes general options and a list of the supported command groups and commands without command group.

$ pywbemcli
pywbemcli> --help
Usage: pywbemcli [GENERAL-OPTIONS] COMMAND [ARGS] [COMMAND-OPTIONS]
. . .

General Options:
  -n, --name NAME                 Use the WBEM server ...
  . . .

Commands:
  class       Command group for CIM classes.
  connection  Command group for WBEM connection definitions.
  . . .

The usage line in this help text shows the usage in command mode. In interactive mode, the pywbemcli word is omitted.

Typing COMMAND --help, or COMMAND -h in the pywbemcli shell displays help information for the specified pywbemcli command group, for example:

pywbemcli> class --help
Usage: pywbemcli [GENERAL-OPTIONS] class COMMAND [ARGS] [COMMAND-OPTIONS]
. . .

Command Options:
  -h, --help  Show this message and exit.

Commands:
  associators   List the classes associated with a class.
  . . .

The pywbemcli shell in the interactive mode supports popup help text while for commands, arguments, and options typing, where the valid choices are shown based upon what was typed so far, and where an item from the popup list can be picked with <TAB> or with the cursor keys. It can be used to select from the list of general options. In the following examples, an underscore _ is shown as the cursor:

pywbemcli> --_
--name               Use the WBEM server defined by the WBEM connection ...
--mock-server        Use a mock WBEM server that is automatically ...
--server             Use the WBEM server at the specified URL with ...
. . .

pywbemcli> cl_
              class

The pywbemcli shell supports history across multiple invocations of the shell using <UP_ARROW>, <DOWN-ARROW> to step through the history line by line.

A incremental search of the history can be initiated by entering <CTRL-r> followed by one or more characters that define the search. The search displays the last command containing the search string. This search string can be modified in place to change the search, returning the last command in the command history that contains the the string. <UP_ARROW>, <DOWN-ARROW> will find other commands in the history containing the same string.

pywbemcli> <CTRL-r>
(reverse-i-search)`':
                                                    ENTER Characters CIM
(reverse-i-search)`CIM': class get CIM_ManagedElement
                                                    <UP-ARROW> and <DOWN-ARROW> find
                                                    other commands containing of "CIM"

<DOWN_ARROW>
(i-search)`get': instance get CIM_ComputerSystem.?
                                                    Hit <ENTER> selects current found command
pywbemcli> instance get CIM_ComputerSystem.?

The pywbemcli history is stored in the user home directory, ~/.pywbemcli_history.

The pywbemcli interactive mode also supports automated parameter suggestions based on the pywbemcli history file which works with the auto completion described above. The input is compared to the history and when there is another entry starting with the given text, the completion will be shown as gray text behind the current input. Pressing the right arrow → or c-e will insert this suggestion.

Error handling

Pywbemcli terminates with one of the following program exit codes:

  • 0 - Success: The pywbemcli command has succeeded.

  • 1 - Error: In such cases, pywbemcli aborts the requested operation and displays one or more human readable error messages on standard error.

    If this happens for a command entered in interactive mode, the pywbemcli shell is not terminated; only the command that failed is terminated.

    Examples for errors reported that way:

    • Local system issues, e.g. pywbemcli history file or term:connections file cannot be written to.
    • WBEM server access issues, e.g. pywbemcli cannot connect to or authenticate with the WBEM server. This includes CIM errors about failed authentication returned by the server.
    • WBEM server operation issues, e.g. pywbemcli attempts to retrieve an instance that does not exist, or the WBEM server encountered an internal error. This will mostly be caused by CIM errors returned by the server, but can also be caused by the pywbemcli code itself.
    • Programming errors in mock Python scripts (see: Mock support overview); the error message includes a Python traceback of the error.
  • 1 - Python traceback: In such cases, pywbemcli terminates during its processing, and displays the Python stack traceback on standard error.

    If this happens for a command entered in interactive mode, the pywbemcli shell also terminates with a program exit code of 1.

    These Python tracebacks should never happen and are always considered a reason to open a bug in the pywbemtools issue tracker.

    Note that an error message with a traceback from a mock Python script does not fall into this category and is an issue in that Python script and not in pywbemcli.

  • 2 - User error: In such cases, pywbemcli terminates without even attempting to perform the requested operation, and displays one or more human readable error messages on standard error.

    If this happens for a command entered in interactive mode, the pywbemcli shell is not terminated; only the command that failed is terminated.

    Examples for user errors are a missing required command argument, the use of an invalid option, or an invalid option argument.

  • 2 - Help: When help is requested (--help/-h option or help command), pywbemcli displays the requested help text on standard output and terminates.

    If this happens for a command entered in interactive mode, the pywbemcli shell is not terminated; only the command that displayed the help is terminated.

Using the pywbemcli command line general options

Overview of the general options

General options define:

General options must be entered on the command line before the command group or command.

For example the following enumerates qualifier declarations and outputs the result in the simple table format:

pywbemcli --output-format simple --server http://localhost qualifier enumerate
Qualifier Declarations
Name         Type     Value    Array    Scopes       Flavors
-----------  -------  -------  -------  -----------  ---------------
Description  string            False    ANY          EnableOverride
                                                     ToSubclass
                                                     Translatable
Key          boolean  False    False    PROPERTY     DisableOverride
                                        REFERENCE    ToSubclass

In interactive mode, general options from the command line are defined once and retain their value throughout the execution of the interactive mode.

General options defined in the command line may be overwritten by specifying them on interactive mode commands. The resulting new value is used only for that one command, and is not retained between interactive mode command executions.

In the following example, the --output-format general option is used on an interactive mode command to overwrite the default output format, and the --server general option is used to overwrite the server that was specified in the command line invocation:

$ pywbemcli --server http://myserver

pywbemcli> --output-format table --server http://localhost qualifier enumerate
Qualifier Declarations
+-------------+---------+---------+---------+-----------+-----------------+
| Name        | Type    | Value   | Array   | Scopes    | Flavors         |
+=============+=========+=========+=========+===========+=================+
| Description | string  |         | False   | ANY       | EnableOverride  |
|             |         |         |         |           | ToSubclass      |
|             |         |         |         |           | Translatable    |
+-------------+---------+---------+---------+-----------+-----------------+
| Key         | boolean | False   | False   | PROPERTY  | DisableOverride |
|             |         |         |         | REFERENCE | ToSubclass      |
+-------------+---------+---------+---------+-----------+-----------------+
Defining the WBEM server

The target WBEM server can be defined on the command line in several ways with the following arguments :

  1. Define connection information for a WBEM server by using the --server general option that specifies the URL of the server.

    The following general options can be used for specifying additional information for the connection:

  2. Define a mock WBEM server by using the --mock-server general option.

    The mock WBEM server is part of pywbemcli and allows testing or demonstrating pywbemcli without having access to a real WBEM server. For details, see Mock WBEM server support.

  3. Refer to a persisted connection definition for either a WBEM server or mock WBEM server by using the --name general option that specifies the name of the connection definition.

    Persisted connection definitions are stored in a connections file and are managed with the connection command group.

Controlling operation behavior and monitoring operations

Several general options control the behavior and monitoring of the operations executed against the WBEM server.

The DMTF specifications allow alternative forms of some operations, pywbemcli implements this flexibility and controls the choice of either the pull operations or the traditional operations through the --use-pull general option. With this option the user can choose to use either type of operation if that operation is available on the WBEM server. See Pywbemcli and the DMTF pull operations for more information on pull operations.

Since the pull operations include the ability to select the maximum size of returned chunks of data, the --pull-max-cnt general option can be used to control response chunk sizes.

In many cases it is important to the user to be able to monitor details of the operations executed against the WBEM server, either the APIs executed in pywbem, or the HTTP requests and responses and the time statistics for these operations.

The --log general option provides the capability to log information about this flow including:

  • The API calls and responses/exceptions executed by pywbem.
  • the HTTP requests and responses that pass between pywbemcli and the WBEM server.

The --log general option configures the logging including what is logged and the destination for the log output.

Thus, for example, the following command enumerates qualifiers and writes the log entries for the CIM-XML HTTP requests and responses to the pywbemcli log file pywbemcli.log:

$ pywbemcli --output-format table --server http://localhost --log http=file qualifier enumerate
<displays table of qualifier declarations>

$ cat pywbemcli.log
2019-09-16 21:14:04,296-pywbem.http.1-21020-Connection:1-21020 WBEMConnection(url='http://localhost', ...)
2019-09-16 21:14:04,297-pywbem.http.1-21020-Request:1-21020 POST /cimom 11 http://localhost
    CIMOperation:'MethodCall' CIMMethod:'EnumerateQualifiers' CIMObject:u'root/cimv2'
    <?xml version="1.0" encoding="utf-8" ?>
    <CIM CIMVERSION="2.0" DTDVERSION="2.0"><MESSAGE ID="1001" PROTOCOLVERSION="1.0">
    ...
    </CIM>
. . .
Controlling output formats

Pywbemcli supports multiple output formats for command results by using the --output-format general option.

The output formats fall into several groups (table formats, CIM object formats, text formats, and a tree format); however, not all formats are supported or applicable for all commands. For more details, see Output formats.

Other miscellaneous general options

The --verbose general option displays extra information about the pywbemcli internal processing.

The --deprecation-warnings general option controls the display of deprecation warnings.

The --version general option displays pywbemcli version information and the --help general option provides top level help

General options descriptions

This section defines in detail the requirements, characteristics, and any special syntax of each general option.

--server general option

The argument value of the --server/-s general option is a string that is the URL of the WBEM server to which pywbemcli will connect, in the format:

[SCHEME://]HOST[:PORT]

Where:

  • SCHEME: The protocol to be used. Must be “https” or “http”. Default: “https”.
  • HOST: The WBEM server host. Must be a short hostname, fully qualified DNS hostname, literal IPv4 address, or literal IPv6 address. See RFC3986 and RFC6874 for details.
  • PORT: The WBEM server port to be used. Default: 5988 for HTTP, and 5989 for HTTPS.

This option is mutually exclusive with the --name general option and the --mock-server general option since each defines a connection to a WBEM server.

In the interactive mode the connection is not actually established until a command requiring access to the WBEM server is entered.

Examples for the argument value of this option include:

https://localhost:15345       # https, port 15345, hostname localhost
http://10.2.3.9               # http, port 5988, IPv4 address 10.2.3.9
https://10.2.3.9              # https, port 5989, IPv4 address 10.2.3.9
http://[2001:db8::1234-eth0]  # http, port 5988, IPv6 address 2001:db8::1234, interface eth0
--name general option

The argument value of the --name/-n general option is a string that is the name of a connection definition in the connections file. The parameters for this named connection definition will be loaded from the connections file to become the current WBEM connection in pywbemcli.

In the interactive mode the connection is not actually established until a command requiring access to the WBEM server is entered.

This option is mutually exclusive with the --server general option and the --mock-server general option since each defines a connection to a WBEM server.

The following example creates a connection definition named myserver in the connections file, and then uses that connection to execute class get:

$ pywbemcli --server http://localhost --user me --password mypw connection save myserver

$ pywbemcli --name myserver class get CIM_ManagedElement
<displays MOF for CIM_ManagedElement>

See connection command group for more information on managing connections.

--default-namespace general option

The argument value of the --default-namespace/-d general option is a string that defines the default CIM namespace to use for the target WBEM server.

If this option is not specified, the default namespace will be root/cimv2.

The default namespace will be used if the --namespace/-n command option is not used on a command.

Some commands execute against multiple or all namespaces, for example the the class find command.

--user general option

The argument value of the --user/-u general option is a string that is the user name for authenticating with the WBEM server.

--password general option

The argument value of the --password/-p general option is a string that is the password for authenticating with the WBEM server.

This option is normally required if the --user general option is defined. If passwords are saved into the connections file, they are not encrypted in the file.

If the WBEM operations performed by any pywbemcli command require a password, the password is prompted for if --user/-u is used (in both modes of operation) and --password/-p is not used.

$ pywbemcli --server http://localhost --user me class get
Enter password: <password>
. . . <The display output from get class>

If both --user/-u and --password/-p are used, the command is executed without a password prompt:

$ pywbemcli --server http://localhost --user me --password blah class get
. . . <The display output from get class>

If the operations performed by a particular pywbemcli command do not require a password or no user is supplied, no password is prompted. For example:

$ pywbemcli --help
. . . <help output>

For script integration, it is important to have a way to avoid the interactive password prompt. This can be done by storing the password string in an environment variable or specifying it on the command line. See Environment variables for general options.

The pywbemcli connection export command outputs the (bash/Windows) shell commands to set all needed environment variables.

The environment variable output is OS dependent. Thus for example in Unix type OSs:

$ pywbemcli --server http://localhost --user fred connection export
export PYWBEMCLI_SERVER=http://localhost
export PYWBEMCLI_NAMESPACE=root/cimv2
...

This ability can be used to set those environment variables and thus to persist the connection name in the shell environment, from where it will be used in any subsequent pywbemcli commands:

$ eval $(pywbemcli --server http://localhost --user fred connection export)

$ env | grep PYWBEMCLI
export PYWBEMCLI_SERVER=http://localhost
export PYWBEMCLI_NAMESPACE=root/cimv2

$ pywbemcli server namespaces
. . . <list of namespaces for the defined server>
--timeout general option

The argument value of the --timeout/-t general option is an integer that defines the client side timeout in seconds. The pywbem client includes a timeout mechanism that closes a WBEM connection if there is no response to a request to the WBEM server in the time defined by this value. Pywbemcli defaults to a predefined timeout (normally 30 seconds) if this option is not defined.

--verify general option

The pair of --verify and --no-verify general options control whether or not the client verifies any certificates received from the WBEM server.

By default or if --verify is specified, any certificates returned by the server are verified. If --no-verify is specified, any certificates returned by the server are accepted without verification.

This general option uses the approach with two long option names to allow the user to specifically enable or disable certificate verification when this general option is used in interactive mode.

--certfile general option

The argument value of the --certfile general option is the file path of a PEM file containing a X.509 client certificate to be presented to the WBEM server during the TLS/SSL handshake, enabling 2-way (mutual) authentication. This option is used only with HTTPS.

If --certfile is not used, no client certificate is presented to the server, resulting in 1-way authentication during the TLS/SSL handshake.

For more information on authentication types, see: https://pywbem.readthedocs.io/en/stable/client/security.html#authentication-types

--keyfile general option

The argument value of the --keyfile general option is the file path of a PEM file containing the private key belonging to the public key that is part of the X.509 certificate. See --certfile general option for more information.

Not required if the private key is part of the file defined in the --certfile option. --keyfile is not allowed if --certfile is not provided. Default: No client key file. The client private key should then be part of the file defined by --certfile.

--ca-certs general option

The argument value of the --ca-certs general option specifies which X.509 certificates are used on the client side for validating the X.509 certificate received from the WBEM server during SSL/TLS handshake when HTTPS is used.

The client-side and server-side certificates may be CA certificates (i.e. certificates issued by a certificate authority) or self-signed certificates.

Its value must be one of:

  • The path name of a file in PEM format that contains one or more certificates. See the description of the ‘CAfile’ argument of the OpenSSL SSL_CTX_load_verify_locations() function for details.
  • The path name of a directory with files in PEM format, each of which contains exactly one certificate. The file names must follow a particular naming convention. See the description of the ‘CApath’ argument of the OpenSSL SSL_CTX_load_verify_locations() function for details.
  • The string ‘certifi’ (only for pywbem version 1.0 or later). This choice will cause the certificates provided by the certifi package to be used. That package provides the certificates from the Mozilla Included CA Certificate List. Note that this list only contains CA certificates, so this choice does not work if the WBEM server uses self-signed certificates.

The default behavior depends on the version of the installed pywbem package:

  • Starting with pywbem version 1.0, the default is the behavior described above for the string ‘certifi’.
  • Before pywbem version 1.0, the default is the path name of the first existing directory from a list of system directories where certificates are expected to be stored.

The version of the installed pywbem package can be displayed using the --version general option.

Specifying the --no-verify option (see --verify general option) bypasses client side verification of the WBEM server certificate.

--timestats general option

The --timestats general option is a boolean option that enables the gathering and display of time statistics on the interactions with the WBEM server. If enabled, the time statistics are output after each command is executed including the operations executed, the size of the operations, and the execution time.

--use-pull general option

The argument value of the --use-pull/-u general option determines whether the pull operations or traditional operations are used for the instance enumerate, instance references, instance associators and instance query commands. See Pywbemcli and the DMTF pull operations for more information on pull operations. The choices for the argument value are as follows:

  • yes - pull operations will be used and if the server does not support pull, the request will fail.
  • no - forces pywbemcli to try only the traditional non-pull operations.
  • either - (default) pywbem tries both; first pull operations and then traditional operations.
--pull-max-cnt general option

The argument value of the --pull-max-cnt general option is an integer passed to the WBEM server with the open and pull operation requests. This integer tells the server the maximum number of objects to be returned for each pull request if pull operations are used. This must be a positive non-zero integer. The default is 1000. See Pywbemcli and the DMTF pull operations for more information on pull operations.

--mock-server general option

The argument value of the --mock-server/-m general option is a file path of a MOF file or Python script that loads a mock WBEM server in the pywbemcli process with mock data (i.e. CIM objects). This allows pywbemcli to be used without access to a real WBEM server.

This option may be specified multiple times.

This option may be specified multiple times to define multiple MOF and Python files that make up the definition of a mock server. The files must have the suffix “.mof” for MOF files and “.py” for Python scripts.

When this option is used, the security options (ex. --user) are irrelevant; they may be specified but are not used.

The following example creates a mock server with two files defining the mock data, shows what parameters are defined for the connection, and then saves that connection named mymockserver:

$ pywbemcli --mock-server classdefs.mof --mock-server insts.py --default-namespace root/myhome

pywbemcli> connection show
name: not-saved (current)
  server:
  mock-server: classdefs.mof, insts.py
  . . .

pywbemcli> connection save mymockserver

See chapter Mock WBEM server support for more information on defining the files for a mock server.

--output-format general option

The argument value of the --output-format/-o general option is a string that defines the output format in which the result of any pywbemcli commands is displayed. The default output format depends on the command.

For details, see Output formats.

--log general option

The argument value of the --log/-l general option defines the destination and parameters of logging of the requests and responses to the WBEM server.

For details, see Pywbemcli defined logging.

--verbose general option

The --verbose/-v general option is a boolean option that enables the display of extra information about the processing.

In particular it outputs text for a number of commands that normally return nothing upon successful execution(ex. instance delete, instance enumerate that returns no CIM objects) to indicate the successful command completion.

--connections-file general option

The --connections-file/-C general option allows the user to select a file path for the connections file. It is the file path of a YAML file that defines server configurations by name. The default if this option is not specified is to use the connections file pywbemcli_connection_definitions.yaml in the users home directory.

The users home directory is OS dependent. The connection file name is displayed in the connections list command

When this option is set, the YAML file defined with the option is used as the connections file.

In the interactive mode, this option may not be modified after the command line is processed.

The connections_file is managed with the commands in the connection command group

--deprecation-warnings general option

The --deprecation-warnings/--no-deprecation-warnings general option is a boolean option that controls the display of deprecation warnings on the standard error stream.

By default, the display of deprecation warnings is enabled.

--pdb general option

The --pdb general option is a boolean option that enables debugging with the built-in pdb debugger.

If debugging is enabled, execution of the pywbemcli command will pause just before the command within pywbemcli is executed, and the pdb debugger prompt will appear. See pdb debugger commands for details on how to operate the built-in pdb debugger.

--version general option

The --version general option displays the version of the pywbemcli command and the version of the pywbem package used by it, and then exits.

--help general option

The --help/-h general option displays help text which describes the command groups and general options, and then exits.

Environment variables for general options

Pywbemcli defines environment variables corresponding to its general options as follows:

Environment variable Corresponding general option
PYWBEMCLI_SERVER --server
PYWBEMCLI_NAME --name
PYWBEMCLI_USER --user
PYWBEMCLI_PASSWORD --password
PYWBEMCLI_OUTPUT_FORMAT --output-format
PYWBEMCLI_DEFAULT_NAMESPACE --default-namespace
PYWBEMCLI_TIMEOUT --timeout
PYWBEMCLI_KEYFILE --keyfile
PYWBEMCLI_CERTFILE --certfile
PYWBEMCLI_CA_CERTS --ca-certs
PYWBEMCLI_USE_PULL --use-pull
PYWBEMCLI_PULL_MAX_CNT --pull-max-cnt
PYWBEMCLI_STATS_ENABLED --timestats
PYWBEMCLI_MOCK_SERVER (1) --mock-server
PYWBEMCLI_LOG --log
PYWBEMCLI_PDB --pdb
PYWBEMCLI_DEPRECATION_WARNINGS --deprecation-warnings
PYWBEMCLI_CONNECTIONS_FILE --connections-file

Notes:

  1. The --mock-server general option can be specified multiple times. To do that with the PYWBEMCLI_MOCK_SERVER environment variable, separate the multiple path names with space.

If these environment variables are set, the corresponding general options default to the value of the environment variables. If both an environment variable and its corresponding general option are set, the command line option overrides the environment variable with no warning.

Environment variables are not provided for command options or command arguments.

In the following example, the pywbemcli command uses server http://localhost defined by the environment variable:

$ export PYWBEMCLI_SERVER=http://localhost
$ pywbemcli class get CIM_ManagedElement
  <displays MOF for CIM_ManagedElement>

The pywbemcli connection export command outputs the (bash/Windows) shell commands to set all of the environment variables:

$ pywbemcli --server http://localhost --user fred connection export
export PYWBEMCLI_SERVER=http://localhost
export PYWBEMCLI_NAMESPACE=root/cimv2
. . .

This can be used to set those environment variables and thus to persist the connection name in the shell environment, from where it will be used in any subsequent pywbemcli commands:

$ eval $(pywbemcli --server http://localhost --user fred)

$ env | grep PYWBEMCLI
export PYWBEMCLI_SERVER=http://localhost
export PYWBEMCLI_NAMESPACE=root/cimv2
. . .

$ pywbemcli server namespaces
. . . <list of namespaces for the defined server>

Pywbemcli and the DMTF pull operations

The DMTF specifications and pywbem includes two ways to execute the enumerate instance type operations (Associators, References, EnumerateInstances, ExecQuery):

Pywbem implements an overlay of the above two operations called the Iter.. operations where each Iter.. operation executes either the traditional or pull operation depending on a parameter of the connection.

While the pull operations may not be supported by all WBEM servers they can be significantly more efficient for large responses when they are available. Pywbem implements the client side of these operation and pywbemcli provides for the use of these operations through two general options:

  • --use-pull - This option allows the user to select from the the following alternatives:
    • either - (default) pywbemcli first tries the open operation and if that is not implemented by the server retries the operation with the corresponding traditional operation. The result of this first operation determines whether pull or the traditional operation are used for any further requests during the current pywbem interactive session.
    • yes - Forces the use of the pull operations and fails if that is not implemented by the server.
    • no - Forces the use of the traditional operation.
  • --pull-max-cnt - Sets the maximum count of objects the server is allowed to return for each open/pull operation. The default is 1000 objects which from experience is a logical choice.

The default alternative either is probably the most logical setting for --use-pull, unless you are specifically testing the use of pull operations.

However, there are some limitations with using the either choice as follows:

  • The original operations did not support the filtering of responses with a query language query (--filter-query-language and --filter-query ) which requests that the WBEM server filter the responses before they are returned. This can greatly reduce the size of the responses if effectively used but is used only when the pull operations are available on the server.
  • The pull operations do not support some of the options that traditional operations do:
  • --include-qualifiers - Since even the traditional operations specification deprecated this option and the user cannot depend on it being honored, the most logical solution is to never use this option.
  • --local-only - Since even the traditional operations specification deprecated this option and the user cannot depend on it being honored by the WBEM server, the most logical solution is to never use this option.

The following example forces the use of the pull operations and expects the WBEM server to return no more than 10 instances per request. It fails if the pull operations are not supported in the WBEM server:

$ pywbemcli --server http://localhost --use-pull=yes --pull-max-cnt=10 instance enumerate CIM_Foo

Output formats

Pywbemcli supports multiple output formats to present command results. The output format can be selected with the --output-format general option. The allowed output formats are different for the various command groups and commands.

The output formats fall into several groups:

  • Table formats - The Table formats format the result as a table with rows and columns. Many of the result types allow table formatted response display including:
    • instance get, instance enumerate, instance references, instance associators where the table formats are alternatives to the CIM model formats that shows the properties for each instance as a column in a table.
    • instance count
    • server commands
    • class find
    • connection commands
  • CIM object formats - The CIM object formats format a result that consists of CIM objects in MOF, CIM-XML or pywbem repr format. All of the commands that return CIM objects support these output formats.
  • ASCII tree format - The ASCII tree format formats the result as a tree, using ASCII characters to represent the tree to show the hierarchial relationship between CIM classes. The only command supporting the ASCII tree format is class tree, and it supports only that one output format. The tree format is not supported by any other command today.
  • TEXT format - The Text formats is used for commands that output small quantites of text (ex. the interop namespace name) and that could be used as part of a command line redirection.

When an unsupported output format is specified for a command response, it is rejected with an exception. For example, the command class enumerate only supports the CIM object formats and will generate an exception if the command pywbemcli -o table class enumerate is entered.

Output formats for groups and commands

Each of the commands may allow only a subset of the possible ouput formats. Thus, the server brand only outputs data in a table format so there is no defined default format for the --output-format general option.

The following shows the default format for each command and the alternate formats where the values mean:

objects: xml, repr, or txt

table: table, plain, simple, grid, psql, rst, text, or html

Group Command Default Alternates Comments
class associators ‘mof’ objects See Note 1 below
class delete None None Nothing returned
class enumerate ‘mof’ objects See Note 1 below
class find ‘simple’ table  
class get ‘mof’ objects See Note 1 below
class invokemethod ‘mof’ objects See Note 1 below
class references ‘mof’ objects See Note 1 below
class tree None None Only outputs as ascii tree
instance associators ‘mof’ objects, table Output as cim object or table of properties
instance count ‘simple’ table  
instance create None None Nothing returned
instance delete None None Nothing returned
instance enumerate ‘mof’ objects, table  
instance get ‘mof’ objects, table  
instance invokemethod ‘mof’ objects, table  
instance modify None None Nothing returned
instance references ‘mof’ table  
qualifier enumerate ‘mof’ table  
qualifier get ‘mof’ table  
server brand ‘text’ text Alternate is table format
server centralinsts ‘simple’ table  
server info ‘simple’ table  
server interop ‘text’ text Alternate is table format
server namespaces ‘simple’ table Alternate is text format
server profiles ‘simple’ table  
connection delete None table  
connection export None table  
connection list ‘simple’ table  
connection save None table  
connection select None None  
connection show None None Currently ignores output format
connection test None None  

NOTES:

  1. The display of classes with the --names-only/--no or --summary/-s command options allows table output formats in addition to the objects output formats.
Table formats

The different variations of the table format define different formatting of the borders for tables. The following are examples of the table formats with a single command class find CIM_Foo:

  • --output-format table: Tables with a single-line border. This is the default:

    Find class CIM_Foo*
    +-------------+-----------------+
    | Namespace   | Classname       |
    |-------------+-----------------|
    | root/cimv2  | CIM_Foo         |
    | root/cimv2  | CIM_Foo_sub     |
    | root/cimv2  | CIM_Foo_sub2    |
    | root/cimv2  | CIM_Foo_sub_sub |
    +-------------+-----------------+
    
  • --output-format simple: Tables with a line between header row and data rows, but otherwise without borders:

    Find class CIM_Foo*
    Namespace    Classname
    -----------  ---------------
    root/cimv2   CIM_Foo
    root/cimv2   CIM_Foo_sub
    root/cimv2   CIM_Foo_sub2
    root/cimv2   CIM_Foo_sub_sub
    
  • --output-format plain: Tables do not use any pseudo-graphics to draw borders:

    Find class CIM_Foo*
    Namespace    Classname
    root/cimv2   CIM_Foo
    root/cimv2   CIM_Foo_sub
    root/cimv2   CIM_Foo_sub2
    root/cimv2   CIM_Foo_sub_sub
    
  • --output-format grid: Tables tables formatted by Emacs’ table.el package. It corresponds to grid_tables in Pandoc Markdown extensions:

    Find class CIM_Foo*
    +-------------+-----------------+
    | Namespace   | Classname       |
    +=============+=================+
    | root/cimv2  | CIM_Foo         |
    +-------------+-----------------+
    | root/cimv2  | CIM_Foo_sub     |
    +-------------+-----------------+
    | root/cimv2  | CIM_Foo_sub2    |
    +-------------+-----------------+
    | root/cimv2  | CIM_Foo_sub_sub |
    +-------------+-----------------+
    
  • --output-format rst: Tables in reStructuredText markup:

    Find class CIM_Foo*
    ===========  ===============
    Namespace    Classname
    ===========  ===============
    root/cimv2   CIM_Foo
    root/cimv2   CIM_Foo_sub
    root/cimv2   CIM_Foo_sub2
    root/cimv2   CIM_Foo_sub_sub
    ===========  ===============
    
  • --output-format psql: Like tables formatted by Postgres’ psql cli:

    Find class CIM_Foo*
    ===========  ===============
    Namespace    Classname
    ===========  ===============
    root/cimv2   CIM_Foo
    root/cimv2   CIM_Foo_sub
    root/cimv2   CIM_Foo_sub2
    root/cimv2   CIM_Foo_sub_sub
    ===========  ===============
    
  • --output-format html: Tables formatted as html table:

    <p>Find class CIM_Foo*</p>
    <table>
    <thead>
    <tr><th>Namespace  </th><th>Classname      </th></tr>
    </thead>
    <tbody>
    <tr><td>root/cimv2 </td><td>CIM_Foo        </td></tr>
    <tr><td>root/cimv2 </td><td>CIM_Foo_sub    </td></tr>
    <tr><td>root/cimv2 </td><td>CIM_Foo_sub2   </td></tr>
    <tr><td>root/cimv2 </td><td>CIM_Foo_sub_sub</td></tr>
    </tbody>
    </table>
    
CIM object formats

The output of CIM objects allows multiple formats as follows:

  • --output-format mof: Format for CIM classes, CIM instances, and CIM Parameters.

    MOF is the format used to define and document the CIM models released by the DMTF and SNIA. It textually defines the components and structure and data of CIM elements such as classes, instances, and qualifier declarations:

    instance of CIM_Foo {
       InstanceID = "CIM_Foo1";
       IntegerProp = 1;
    };
    
  • --output-format xml: CIM-XML format for CIM elements such as classes, instances and qualifier declarations. Besides being used as a protocol for WBEM servers, CIM-XML is also an alternative format for representing the CIM models released by the DMTF and SNIA. The XML syntax is defined in the DMTF specification DSP0201.

    This is the format used in the DMTF CIM-XML protocol:

    <VALUE.OBJECTWITHLOCALPATH>
        <LOCALINSTANCEPATH>
            <LOCALNAMESPACEPATH>
                <NAMESPACE NAME="root"/>
                <NAMESPACE NAME="cimv2"/>
            </LOCALNAMESPACEPATH>
            <INSTANCENAME CLASSNAME="CIM_Foo">
                <KEYBINDING NAME="InstanceID">
                    <KEYVALUE VALUETYPE="string">CIM_Foo1</KEYVALUE>
                </KEYBINDING>
            </INSTANCENAME>
        </LOCALINSTANCEPATH>
        <INSTANCE CLASSNAME="CIM_Foo">
            <PROPERTY NAME="InstanceID" PROPAGATED="false" TYPE="string">
                <VALUE>CIM_Foo1</VALUE>
            </PROPERTY>
            <PROPERTY NAME="IntegerProp" PROPAGATED="false" TYPE="uint32">
                <VALUE>1</VALUE>
            </PROPERTY>
        </INSTANCE>
    </VALUE.OBJECTWITHLOCALPATH>
    
  • --output-format repr: Python repr format of the objects.

    This is the structure and data of the pywbem Python objects representing these CIM objects and can be useful in understanding the pywbem interpretation of the CIM objects:

    CIMInstance(classname='CIM_Foo', path=CIMInstanceName(classname='CIM_Foo',
        keybindings=NocaseDict({'InstanceID': 'CIM_Foo1'}), namespace='root/cimv2',
        host=None),
        properties=NocaseDict({
          'InstanceID': CIMProperty(name='InstanceID',
            value='CIM_Foo1', type='string', reference_class=None, embedded_object=None,
            is_array=False, array_size=None, class_origin=None, propagated=False,
            qualifiers=NocaseDict({})),
          'IntegerProp': CIMProperty(name='IntegerProp', value=1, type='uint32',
              reference_class=None, embedded_object=None, is_array=False,
              array_size=None, class_origin=None, propagated=False,
              qualifiers=NocaseDict({}))}), property_list=None,
              qualifiers=NocaseDict({}))
    

    NOTE: The above is output as a single line and has been manually formatted for this documentation.

  • --output-format txt: Python str format of the objects.

    This should be considered the output of last resort as it simply uses the __str__() method of the Python class for each CIM object to output.

    Thus, for example, a class enumerate command of a model with only a single class creates output of the form:

    CIMClass(classname='CIM_Foo', ...)
    
ASCII tree format

This output format is an ASCII based output that shows the tree structure of the results of the class tree command. It is the only output format supported by this command, and therefore it is automatically selected and cannot be specified explicitly with the --output-format general option.

$ pywbemcli --mock-server tests/unit/simple_mock_model.mof class tree
root
+-- CIM_Foo
    +-- CIM_Foo_sub
    |   +-- CIM_Foo_sub_sub
    +-- CIM_Foo_sub2

This shows a very simple mock repository with 4 classes where CIM_Foo is the top level in the hierarchy, CIM_Foo_sub and CIM_Foo_sub2 are its subclasses, and CIM_Foo_sub_sub is the subclass of CIM_Foo_sub.

Text formats

The TEXT format group outputs the data returned from the command as text to the console without any formatting except for formatting lists and comma separated strings. It is useful for use with data that might be redirected to other commands or output that is simple enough that a single line of output is sufficient.

$ pywbemcli --mock-server tests/unit/testmock/wbemserver_mock.py -o table server namespaces
Server Namespaces:
Namespace Name
----------------
interop

$ pywbemcli --mock-server tests/unit/testmock/wbemserver_mock.py -o text server namespaces
interop
Pywbemcli defined logging

Pywbemcli provides logging to either a file or the standard error stream of information passing between the pywbemcli client and a WBEM server using the standard Python logging facility.

Logging is configured and enabled using the --log general option on the commmand line or the PYWBEMCLI_LOG environment variable.

Pywbemcli can log operation calls that send requests to a WBEM server and their responses and the HTTP messages between the pywbemcli client and the WBEM server including both the pywbem APIs and their responses and the HTTP requests and responses.

The default is no logging if the --log option is not specified.

The argument value of the --log option and the value of the PYWBEMCLI_LOG environment variable is a log configuration string with the format defined in the ABNF rule LOG_CONFIG_STRING, below. The log configuration string defines a list of one or more log configurations, each with fields COMPONENT, DESTINATION, and DETAIL:

LOG_CONFIG_STRING := CONFIG [ "," CONFIG ]
CONFIG            := COMPONENT [ "=" DESTINATION [ ":" DETAIL ]]
COMPONENT         := ( "all" / "api" / "http" )
DESTINATION       := ( "stderr" / "file" )
DETAIL            := ( "all" / "path" / "summary" )

For example the following log configuration string logs the pywbem API calls and writes summary information to a log file and the HTTP requests and responses to stderr:

$ pywbemcli --log api=file:summary,http=stderr

The simplest log configuration string to enable logging is all=stderr or all=file.

The COMPONENT field defines the component for which logging is enabled:

  • api - Logs the calls to the pywbem methods that make requests to a WBEM server. This logs both the requests and response including any exceptions generated by error responses from the WBEM server.
  • http - Logs the headers and data for HTTP requests and responses to the WBEM server.
  • all - (Default) Logs both the api and http components.

The DESTINATION field specifies the log destination:

  • stderr - Output log to stderr.
  • file - (default) Log to the pywbemcli log file pywbemcli.log in the current directory. Logs are appended to an existing log file.

The DETAIL component of the log configuration string defines the level of logging information for the api and http components. Because enormous quantities of information can be generated this option exists to limit the amount of information generated. The possible keywords are:

  • all - (Default) Logs the full request including all input parameters and the complete response including all data. Exceptions are fully logged.
  • paths - Logs the full request but only the path component of the api responses. This reduces the data included in the responses. Exceptions are fully logged.
  • summary - Logs the requests but only the count of objects received in the response. Exceptions are fully logged.

The log output is routed to the output defined by DESTINATION and includes the information determined by the COMPONENT and DETAIL fields.

The log output format is:

<Date time>-<Component>.<connection id>-<Direction>:<connection id> <PywbemOperation>(<data>)

For example, logging only of the summary API information would look something like the following:

$ pywbemcli -s http://localhost -u blah -p pw -l api=file:summary class enumerate -o

produces log output for the class enumerate operation in the log file pywbemcli.log as follows showing the input parameters to the pywbem method EnumerateClassName and the number of objects in the response:

2019-07-09 18:27:22,103-pywbem.api.1-27716-Request:1-27716 EnumerateClassNames(ClassName=None, DeepInheritance=False, namespace=None)
2019-07-09 18:27:22,142-pywbem.api.1-27716-Return:1-27716 EnumerateClassNames(list of str; count=103)

Pywbemcli persisted connection definitions

Pywbemcli can manage persisted connection definitions via the connection command group. These connection definitions are persisted in a connections file named pywbemcli_connection_definitions.yaml in the current directory. A connection definition has a name and defines all parameters necessary to connect to a WBEM server. Once defined these connection definitions can be used with the --name general option or in the interactive mode by defining a current connection with the connection select command.

A new persistent connection definition can be created with the connection save command.

At any point in time, pywbemcli can communicate with only a single WBEM server. That is the current connection. In the command mode, this is the WBEM server defined by the general options --server or --mock-server or --name. In the interactive mode, the current connection can be changed within an interactive session using the connection select command so that within a single session, the user can work with multiple WBEM servers (at different points in time).

The following example creates a persisted connection definition, using interactive mode:

$ pywbemcli

pywbemcli> --server http://localhost --user usr1 --password blah connection save testconn

pywbemcli> connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

Since the connection definition is persisted, it is available in command mode as well as in new interactive sessions:

$ pywbemcli connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

$ pywbemcli

pywbemcli> connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

Other connection definitions can be added, this time using command mode:

$ pywbemcli --server http://blah2 --user you --password xxx connection save Ronald

$ pywbemcli connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| Ronald    | http://blah2     | root/cimv2  | you    |        30 | True     |                                        |
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

The following example shows how to select current connections in interactive mode. Note the marker * in front of the name, which indicates the current connection. The connection show command when used without a connection name shows the current connection:

$ pywbemcli

pywbemcli> connection select Ronald

pywbemcli> connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| *Ronald   | http://blah2     | root/cimv2  | you    |        30 | True     |                                        |
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

pywbemcli> connection show
name: Ronald (current)
  server: http://blah2
  mock-server:
  . . .

pywbemcli> connection select testconn

pywbemcli> connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| Ronald    | http://blah2     | root/cimv2  | you    |        30 | True     |                                        |
| *testconn | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

pywbemcli> connection show
name: testconn (current)
  server: http://localhost
  mock-server:
  . . .

pywbemcli> connection show Ronald
name: Ronald
  server: http://blah2
  mock-server:
  . . .

The concept of a current connection that can be selected is useful mostly for the interactive mode. In command mode, the connection specified with one of the -server, --mock-server, or --name general options automatically is considered the current connection, and there is no concept of selecting a current connection other than using these options. Therefore, pywbemcli additionally supports the concept of a persisted default connection.

The following example defines a persisted default connection and then uses it in command mode:

$ pywbemcli connection select Ronald --default
"Ronald" default and current

$ pywbemcli connection list
WBEM server connections: (#: default, *: current)
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+
| name      | server           | namespace   | user   |   timeout | verify   | mock-server                            |
|-----------+------------------+-------------+--------+-----------+----------+----------------------------------------|
| #Ronald   | http://blah2     | root/cimv2  | you    |        30 | True     |                                        |
| testconn  | http://localhost | root/cimv2  | usr1   |        30 | True     |                                        |
+-----------+------------------+-------------+--------+-----------+----------+----------------------------------------+

$ pywbemcli connection show
name: Ronald (default, current)
  server: http://blah2
  mock-server:
  . . .

Connections can be deleted with the connection delete command either with the command argument containing the connection name or with no name provided so pywbemcli presents a list of connections to choose from:

$ pywbemcli connection delete Ronald
Deleted default connection "Ronald".

or:

$ pywbemcli connection delete
Select a connection or CTRL_C to abort.
0: Ronald
1: testconn
Input integer between 0 and 1 or Ctrl-C to exit selection: 0
Deleted default connection "Ronald".

Pywbemcli special command line features

Pywbemcli includes several features in the command syntax that are worth presenting in detail to help the user understand the background, purpose and syntactic implementation of the features. This includes:

  • The ability to receive either CIM instances or classes or only their names with only a change of an option on the commands that request CIM instances or classes. The --names-only/--no command option defines whether only the name or the complete object will be displayed.
  • The ability to define complete INSTANCE name command arguments or interactively select the instance namesfrom a list presented by pywbemcli for certain objects rather than typing in long names the full name. see Specifying the INSTANCENAME command argument.

pywbemcli commands to WBEM operations

The following table defines which pywbemcli commands are used for the corresponding WBEM operations.

WBEM CIM-XML Operation pywbemcli command group & command
Instance Operations:  
EnumerateInstances instance enumerate INSTANCENAME
EnumerateInstanceNames instance enumerate INSTANCENAME –names-only
GetInstance instance get INSTANCENAME
ModifyInstance instance modify
CreateInstance instance create
DeleteInstance instance delete INSTANCENAME
Associators(instance) instance associators INSTANCENAME
Associators(class) class associators CLASSNAME
AssociatorNames(instance) instance associators INSTANCENAME –names-only
AssociatorNames(class) class associators CLASSNAME –names-only
References(instance) instance references INSTANCENAME
References(class) class references CLASSNAME
ReferenceNames(instance) instance references INSTANCENAME –names-only
ReferenceNames(class) class references CLASSNAME –names-only
InvokeMethod instance invokemethod INSTANCENAME –names-only
ReferenceNames class invokemethod CLASSNAME –names-only
ExecQuery instance query
Pull Operations: Option –use-pull either or yes
OpenEnumerateInstances instance enumerate INSTANCENAME
OpenEnumerateInstancePaths instance enumerate INSTANCENAME –names-only
OpenAssociatorInstances instance associators INSTANCENAME
OpenAssociatorInstancePaths instance associators INSTANCENAME –names-only
OpenReferenceInstances instance references INSTANCENAME
OpenReferenceInstancePaths instance references INSTANCENAME –names-only
OpenQueryInstances instance references INSTANCENAME –names-only
PullInstancesWithPath part of pull sequence
PullInstancePaths part of pull sequence
PullInstances part of pull sequence
CloseEnumeration Not implemented
Class Operations:  
EnumerateClasses class enumerate CLASSNAME
EnumerateClassNames class enumerate –names-only
GetClass class get CLASSNAME
ModifyClass Not implemented
CreateClass Not implemented
DeleteClass class delete CLASSNAME
QualifierDeclaration ops:  
EnumerateQualifiers qualifier enumerate
GetQualifier qualifier get QUALIFIERNAME
SetQualifier Not implemented
DeleteQualifier Not Implemented

Specifying CIM property and parameter values

The instance create command, instance modify command, class invokemethod command, and instance invokemethod command define the values of properties and parameters that are to be applied to CIM instances and methods to be sent to the WBEM server.

For a single property or parameter these are the --property/-p or --parameter/-p command options with name and value in the form:

--property <name>=<value>
--parameter <name>=<value>
-p <name>=<value>

Where:

  • <name> is the name of the of the property or parameter.
  • <value> is the value of the property or parameter. The values represent the value of CIM types (ex. Uint32, String, etc.) or arrays of these types.
value := scalarValue | or arrayValues
arrayValues := scalarValue [ "," scalarValue]
scalarValue := integerValue, realValue, charValue, stringValue,
               datetimeValue, booleanValue, nullValue, objectPath of
               ANNEX A :term:`DSP0004`

These values define the syntax of the values to build CIM properties and CIM parameters to be sent to the CIM Server. Since the WBEM server requires that each property/parameter be typed to be created, pywbemcli retrieves the target CIM class from the WBEM Server to determine the CIM type and arrayness required to define a CIMProperty.

The scalarValues limitations with respect to the definitions in DSP0004 include:

  • Only decimal integers are allowed (octal, hex, and binary are not supported).
  • Integers must be in the value range of the corresponding CIM type (ex. Uint32) defined in the class to which the property is being applied.
  • The format for objectPath is the WBEM URI as defined in Specifying the INSTANCENAME command argument

Quotes around the value are only required if the value includes whitespace. See backslash-escaped for information on use of backslashes in formating property and parameter argument values.

The following are examples of scalar property definitions:

-p p1=SomeText
-p p2=\"Text with space\"
-p pint=3
-p psint=-3

For array properties the values are defined separated by commas:

-p <property-name>=<value>(,<value>)

For example:

-p strarray=abc,def,ghjk
-p strarray2=\"ab c\",def

Displaying CIM instances/classes or their names

The pywbem API includes different WBEM operations (ex. EnumerateInstances, EnumerateInstanceNames, EnumerateClasses, and EnumerateClassNames) to request CIM objects or just their names. To simplify the overall command line syntax pywbemcli combines these into a single command (i.e. enumerate, references, associators) in the class command group and the instance command group and includes the --names-only/--no command option that determines whether the names or the CIM objects are retrieved from the WBEM server.

Thus, for example an instance enumerate command with and without the --names-only/--no option:

$ pywbemcli --mock-server tests/unit/simple_mock_model.mof instance enumerate CIM_Foo

instance of CIM_Foo {
   InstanceID = "CIM_Foo1";
   IntegerProp = 1;
};

instance of CIM_Foo {
   InstanceID = "CIM_Foo2";
   IntegerProp = 2;
};

instance of CIM_Foo {
   InstanceID = "CIM_Foo3";
};

$ pywbemcli --mock-server tests/unit/simple_mock_model.mof instance enumerate CIM_Foo --names-only

root/cimv2:CIM_Foo.InstanceID="CIM_Foo1"
root/cimv2:CIM_Foo.InstanceID="CIM_Foo2"
root/cimv2:CIM_Foo.InstanceID="CIM_Foo3"

Specifying the INSTANCENAME command argument

The INSTANCENAME argument used by some pywbemcli commands (e.g instance get) specifies the instance path (aka instance name) of a CIM instance in a CIM namespace of a WBEM server.

The instance name (INSTANCENAME argument) can be specified in two ways:

  • By specifying a complete untyped WBEM URI as defined in section The INSTANCENAME command argument as a WBEM URI. The namespace of the instance is the namespace specified in the WBEM URI, or the namespace specified with the --namespace/-n command option, or the default namespace of the connection. Any host name in the WBEM URI will be ignored.
  • By specifying the WBEM URI with the wildcard “?” in place of the keys component of the WBEM URI, as defined in section Interactively selecting INSTANCENAME command argument (i.e. CLASSNAME.?). The namespace of the instance is the namespace specified with the --namespace/-n command option, or the default namespace of the connection. If there is only a single instance, that instance is selected automaticaly with without user request.
  • By specifying the WBEM URI without keybindings and using the --key/-k command option to specify the keybindings ad defined in section Defining INSTANCENAME command argument with –key option. The advantage of this technique is that it eliminates the use of the double quote surrounding the key values.
The INSTANCENAME command argument as a WBEM URI

The format used by pywbemcli for specifying complete INSTANCENAME arguments on the command line is an untyped WBEM URI for instance paths as defined in DSP0207, this is the standard format. There is also a historical format for WBEM URIs that is described in the pywbem.CIMInstanceName.to_wbem_uri() method.

The INSTANCENAME argument can be specified using the standard format or the historical format.

Because pywbemcli always works with a single WBEM server at a time, the authority component of the WBEM URI does not need to be specified in an INSTANCENAME argument. Because the namespace type of the WBEM URI (e.g. “http” or “https”) is not relevant for identifying the CIM instance, the namespace type does not need to be specified in an INSTANCENAME argument.

With these simplifications and using the (simpler) historical format, the format for the INSTANCENAME argument can be described by the following ABNF:

INSTANCENAME = [ NAMESPACE ":" ] CLASSNAME [ "." keybindings ]

keybindings = keybinding *( "," keybinding )

keybinding = PROPERTYNAME "=" value

value = integerValue / charValue / stringValue / datetimeValue / booleanValue / referenceValue

referenceValue = "\"" escaped_INSTANCENAME "\""

where:

  • NAMESPACE, CLASSNAME and PROPERTYNAME are namespace, class and key property name, respectively, as used elsewhere in pywbemcli.

    The namespace, if specified, must be the target namespace of the operation. The purpose of being able to specify a namespace in INSTANCENAME is not to override the target namespace, but to use returned instance names that may contain a namespace, unchanged.

  • integerValue, charValue, stringValue, datetimeValue and booleanValue are defined in ANNEX A of DSP0004.

    Note that stringValue and datetimeValue when used in INSTANCENAME have exactly one set of surrounding double quotes (i.e. they cannot be constructed via string concatenation).

    Note that charValue when used in INSTANCENAME has exactly one set of surrounding single quotes.

    Note that DSP0004 prevents the use of real32 or real64 typed properties as keys.

  • escaped_INSTANCENAME is a backslash-escaped INSTANCENAME where at least backslash and double quote characters are backslash-escaped

Examples for UNIX-like shells. See backslash-escaped for information on use of backslashes:

pywbemcli instance get root/cimv2:MY_Foo.ID=42
pywbemcli instance get MY_Foo.ID=42
pywbemcli instance get "MY_Foo.CharKey='x'"
pywbemcli instance get 'MY_Foo.InstanceID="foo1"'
pywbemcli instance get "MY_Foo.InstanceID=\"$value\""
pywbemcli instance get 'MY_CS.CreationClassName="MY_CS",Name="MyComp"'
pywbemcli instance get 'MY_LogEntry.Timestamp="20190901183853.762122+120"'

Examples for Windows command processor:

pywbemcli instance get root/cimv2:MY_Foo.ID=42
pywbemcli instance get MY_Foo.ID=42
pywbemcli instance get MY_Foo.CharKey='x'
pywbemcli instance get MY_Foo.InstanceID="foo1"
pywbemcli instance get MY_Foo.InstanceID="%value%"
pywbemcli instance get MY_CS.CreationClassName="MY_CS",Name="MyComp"
pywbemcli instance get MY_LogEntry.Timestamp="20190901183853.762122+120"
Interactively selecting INSTANCENAME command argument

To simplify creating the INSTANCENAME argument on the command line, pywbemcli provides a wildcard character “?” that can be used in the INSTANCENAME argument in place of the keybindings component of the WBEM URI.

If an INSTANCENAME argument specifies the wildcard key, pywbemcli performs an interactive selection of the instance name by enumerating the instance names of the specified class, displaying the list of instance names along with index numbers, and prompting the user for the index number of the instance name to be used.

The ABNF for the INSTANCENAME argument with a wildcard key is:

INSTANCENAME = CLASSNAME "." wildcard

wildcard = "?"

where:

  • CLASSNAME is a class name as used elsewhere in pywbemcli.

Thus, in place of the full WBEM URI (ex. CIM_Foo.InstanceID="CIM_Foo1"), the user specifies CIM_Foo.? for the INSTANCENAME argument to trigger the interactive selection, as shown in the following example:

$ pywbemcli --mock-server tests/unit/simple_mock_model.mof instance get CIM_Foo.?
Pick Instance name to process
0: root/cimv2:CIM_Foo.InstanceID="CIM_Foo1"
1: root/cimv2:CIM_Foo.InstanceID="CIM_Foo2"
2: root/cimv2:CIM_Foo.InstanceID="CIM_Foo3"
Input integer between 0 and 2 or Ctrl-C to exit selection: 0  << user enters 0
instance of CIM_Foo {
   InstanceID = "CIM_Foo1";
   IntegerProp = 1;
};
Defining INSTANCENAME command argument with –key option

The INSTANCENAME may be specified by a combination of the namespace/classname as an argument with the --key/-k command option to define keybindings. Each --key/-k option definition defines a single keybinding in the form name=value. In general, the value component does not require the double quote that is required with the WBEM URI format unless there are space characters in a string value.

Example:

CIM_Foo --key InstanceId=inst1

Pywbemcli command groups and commands

This section defines the characteristics of each of the pywbemcli command groups and commands including examples.

For the command line syntax of pywbemcli using these command groups and commands, see Pywbemcli command line interface.

NOTE: Many of the examples below use the --mock-server general option with mock files that are located in the pywbemtools tests/unit subdirectory.

class command group

The class command group has commands that act on CIM classes:

See pywbemcli class –help.

class associators command

The class associators command lists the CIM classes that are associated with the specified source class.

The source class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the --names-only/--no command option is set, only the class path is displayed, using CIM object output formats or Table output formats. Otherwise, the class definition is displayed, using CIM object output formats.

Note: This command returns class associations. The instance associators command returns instance associations.

Example:

$ pywbemcli --name mymock class associators TST_Person --names-only
//FakedUrl/root/cimv2:TST_Person

See pywbemcli class associators –help for the exact help output of the command.

class delete command

The class delete command deletes the specified class on the server.

The class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the class has subclasses, the command is rejected.

If the class has instances, the command is rejected, unless the --force command option was specified, in which case the instances are also deleted.

WARNING: Deleting classes can cause damage to the server: It can impact instance providers and other components in the server. Use this command with caution.

Many WBEM servers may not allow this operation or may severely limit the conditions under which a class can be deleted from the server.

Example:

$ pywbemcli class delete CIM_Blah

See pywbemcli class delete –help for the exact help output of the command.

class enumerate command

The class enumerate command enumerates the subclasses of the specified class, or the root classes of the class hierarchy.

If the CLASSNAME argument is specified, the command enumerates the subclasses of the class named with the CLASSNAME argument in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the CLASSNAME argument is omitted, the command enumerates the top classes of the class hierarchy in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the --names-only/--no command option is set, only the class path is displayed, using CIM object output formats or Table output formats. Otherwise, the class definition is displayed, using CIM object output formats.

If the --deep-inheritance/--di command option is set, all direct and indirect subclasses are included in the result. Otherwise, only one level of the class hierarchy is in the result.

The --association/--no-association, --indication/--no-indication, and --experimental/--no-experimental options filter the returned classes or classnames to include or exclude classes with the corresponding qualifiers. Thus the --association option returns only classes or classnames that are association classes.

The following example enumerates the class names of the root classes in the default namespace:

$ pywbemcli --name mymock class enumerate --names-only
TST_Person
TST_Lineage
TST_MemberOfFamilyCollection
TST_FamilyCollection

See pywbemcli class enumerate –help for the exact help output of the command.

class find command

The class find command lists classes with a class name that matches the Unix-style path name pattern specified in the CLASSNAME-GLOB argument in all namespaces of the connection, or otherwise in the specified namespaces if the -namespace/-n command option is specified one or more times.

The --association/--no-association, --indication/--no-indication, and --experimental/--no-experimental options filter the returned classes or classnames to include or exclude classes with the corresponding qualifiers. Thus the --association option returns only classes or classnames that are association classes.

The command displays the namespaces and class names of the result using the txt output format (default), or using Table output formats.

$ pywbemcli class find .*_WBEMS*
root/PG_InterOp:CIM_WBEMServer
root/PG_InterOp:CIM_WBEMServerCapabilities
root/PG_InterOp:CIM_WBEMServerNamespace
root/PG_InterOp:CIM_WBEMService
test/EmbeddedInstance/Dynamic:CIM_WBEMService
test/EmbeddedInstance/Static:CIM_WBEMService
test/TestProvider:CIM_WBEMServer
test/TestProvider:CIM_WBEMServerCapabilities
test/TestProvider:CIM_WBEMServerNamespace
test/TestProvider:CIM_WBEMService
root/SampleProvider:CIM_WBEMService
root/cimv2:CIM_WBEMServer
root/cimv2:CIM_WBEMServerCapabilities
root/cimv2:CIM_WBEMServerNamespace
root/cimv2:CIM_WBEMService
root/PG_Internal:PG_WBEMSLPTemplate

$ pywbemcli --output-format table class find CIM_SystemComponent*
Find class CIM_SystemComponent*
+-------------------------------+---------------------+
| Namespace                     | Classname           |
|-------------------------------+---------------------|
| root/PG_InterOp               | CIM_SystemComponent |
| test/WsmTest                  | CIM_SystemComponent |
| test/cimv2                    | CIM_SystemComponent |
| test/CimsubTestNS0            | CIM_SystemComponent |
| test/TestProvider             | CIM_SystemComponent |
| test/EmbeddedInstance/Dynamic | CIM_SystemComponent |
| root/SampleProvider           | CIM_SystemComponent |
| test/CimsubTestNS1            | CIM_SystemComponent |
| test/static                   | CIM_SystemComponent |
| test/CimsubTestNS2            | CIM_SystemComponent |
| test/TestINdSrcNS2            | CIM_SystemComponent |
| test/EmbeddedInstance/Static  | CIM_SystemComponent |
| test/CimsubTestNS3            | CIM_SystemComponent |
| test/TestIndSrcNS1            | CIM_SystemComponent |
| root/cimv2                    | CIM_SystemComponent |
| root/benchmark                | CIM_SystemComponent |
+-------------------------------+---------------------+

See pywbemcli class find –help for the exact help output of the command.

class get command

The class get command gets the specified class.

The class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

The class definition is displayed using CIM object output formats. This command does not support Table output formats.

The following example shows getting the MOF representation of the class CIM_Foo:

$ pywbemcli --name mymock class get CIM_Foo

     [Description ( "Simple CIM Class" )]
  class CIM_Foo {

        [Key ( true ),
         Description ( "This is key property." )]
     string InstanceID;

        [Description ( "This is Uint32 property." )]
     uint32 IntegerProp;

        [Description ( "Method with in and out parameters" )]
     uint32 Fuzzy(
           [IN ( true ),
            OUT ( true ),
            Description ( "Define data to be returned in output parameter" )]
        string TestInOutParameter,
           [IN ( true ),
            OUT ( true ),
            Description ( "Test of ref in/out parameter" )]
        CIM_Foo REF TestRef,
           [IN ( false ),
            OUT ( true ),
            Description ( "Rtns method name if exists on input" )]
        string OutputParam,
           [IN ( true ),
            Description ( "Defines return value if provided." )]
        uint32 OutputRtnValue);

        [Description ( "Method with no Parameters" )]
     uint32 DeleteNothing();

  };

See pywbemcli class get –help for the exact help output of the command.

class invokemethod command

The class invokemethod command invokes a CIM method on the specified class and displays the return value and any output parameters.

The class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

Input parameters for the method can be specified with the --parameter/-p command option, which can be specified multiple times. For details, see Specifying CIM property and parameter values.

The return value and output parameters are displayed using CIM object output formats.

This command invokes a method on a class, not on an instance. To invoke a method on an instance, use the instance invokemethod command.

Example:

$ pywbemcli --mock-server tests/unit/all_types.mof --mock-server tests/unit/all_types_method_mock.py.py

pywbemcli> class invokemethod PyWBEM_AllTypes AllTypesMethod --parameter arrBool=True,False
ReturnValue=0
arrBool=true, false

See pywbemcli class invokemethod –help for the exact help output of the command.

class references command

The class references command lists the CIM classes that reference the specified source class.

The source class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the --names-only/--no command option is set, only the class path is displayed, using CIM object output formats or Table output formats. Otherwise, the class definition is displayed, using CIM object output formats.

Note: This command returns the class references, not the instance references. The instance references command returns the instance references.

$ pywbemcli --name mymock class references TST_Person --names-only
//FakedUrl/root/cimv2:TST_Lineage
//FakedUrl/root/cimv2:TST_MemberOfFamilyCollection

See pywbemcli class references –help for the exact help output of the command.

class tree command

The class tree command displays the subclass or superclass hierarchy of the specified class.

The class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If CLASSNAME is omitted, the complete class hierarchy of the namespace is displayed.

If the -superclasses command option is set, the specified class and its superclass ancestry up to the top-level class are displayed. Otherwise, the specified class and its subclass hierarchy are displayed.

The class hierarchy (or ancestry) is always formatted in the Tree output format; the --output-format/-o general option is ignored.

Example:

$ pywbemcli class tree CIM_Foo
CIM_Foo
 +-- CIM_Foo_sub
 |   +-- CIM_Foo_sub_sub
 +-- CIM_Foo_sub2

See pywbemcli class tree –help for the exact help output of the command.

instance command group

The instance command group has commands that act on CIM instances:

See pywbemcli instance –help.

instance associators command

The instance associators command lists the CIM instances that are associated with the specified source instance.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

If the --names-only/--no command option is set, only the instance paths are displayed. Otherwise, the instances are displayed.

Valid output formats in both cases are CIM object output formats or Table output formats.

Note: This command returns the instance associators, not the class associators. The class associators command returns the class associators.

Example:

$ pywbemcli --name mymock instance references TST_Person.? --names-only
Pick Instance name to process: 0
0: root/cimv2:TST_Person.name="Mike"
1: root/cimv2:TST_Person.name="Saara"
2: root/cimv2:TST_Person.name="Sofi"
3: root/cimv2:TST_Person.name="Gabi"
4: root/cimv2:TST_PersonSub.name="Mikesub"
5: root/cimv2:TST_PersonSub.name="Saarasub"
6: root/cimv2:TST_PersonSub.name="Sofisub"
7: root/cimv2:TST_PersonSub.name="Gabisub"
Input integer between 0 and 7 or Ctrl-C to exit selection: 0   << entered by user

//FakedUrl/root/cimv2:TST_Lineage.InstanceID="MikeSofi"
//FakedUrl/root/cimv2:TST_Lineage.InstanceID="MikeGabi"
//FakedUrl/root/cimv2:TST_MemberOfFamilyCollection.family="root/cimv2:TST_FamilyCollection.name=\"Family2\"",member="root/cimv2:TST_Person.name=\"Mike\""

See pywbemcli instance associators –help for the exact help output of the command.

instance count command

The instance count command counts the CIM instances of some or all classes in the namespaces specified with the -namespace/-n command option, or all namespaces in the server.

This command displays the count of instances of each CIM class whose class name matches the specified wildcard expression (CLASSNAME-GLOB) in all CIM namespaces of the WBEM server, or in the specified namespaces (–namespace option). This differs from instance enumerate, etc. in that it counts the instances specifically for the classname of each instance returned (the creation classname), not including subclasses.

If the CLASSNAME-GLOB argument is specified, only instances of classes that match the specified Unix-style path name pattern are counted. If the CLASSNAME-GLOB argument is not specified all instances of all classes in the target namespaces are counted.

The --association/--no-association, --indication/--no-indication, and --experimental/--no-experimental options filter the returned classes or classnames to include or exclude classes with the corresponding qualifiers. Thus the --association option returns only classes or classnames that are association classes.

Results for classes that have no instances are not displayed.

This command can take a long time to execute since it potentially enumerates all instance names for all classes in all namespaces.

Valid output formats are Table output formats.

Example:

$ pywbemcli --name mymock instance count
Count of instances per class
+-------------+------------------------------+---------+
| Namespace   | Class                        |   count |
|-------------+------------------------------+---------|
| root/cimv2  | TST_FamilyCollection         |       2 |
| root/cimv2  | TST_Lineage                  |       3 |
| root/cimv2  | TST_MemberOfFamilyCollection |       3 |
| root/cimv2  | TST_Person                   |       4 |
| root/cimv2  | TST_Personsub                |       4 |
+-------------+------------------------------+---------+

Count is useful to determine which classes in the environment are actually implemented. However this command can take a long time to execute because it must a) enumerate all classes in the namespace, b) enumerate the instances for each class.

See pywbemcli instance count –help for the exact help output of the command.

instance create command

The instance create command creates a CIM instance in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

The new CIM instance has the creation class specified in the CLASSNAME argument and initial property values as specified by zero or more --property/-p command options. For details, see Specifying CIM property and parameter values.

The command displays the instance path of the new instance that is returned by the WBEM server, using txt output format.

Since the WBEM server (and pywbem) requires that each property be typed, pywbemcli retrieves the creation class from the WBEM server to determine the data types for the properties.

The following examples create an instance of the class TST_Blah with two scalar and one array property:

$ pywbemcli instance create TST_Blah --property InstancId=blah1 --property IntProp=3 --property IntArr=3,6,9

$ pywbemcli instance create TST_Blah --property InstancId=\"blah 2\" --property IntProp=3 --property IntArr=3,6,9

See pywbemcli instance create –help for the exact help output of the command.

instance delete command

The instance delete command deletes a CIM instance.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

The following example deletes an instance by specifying its instance name. Note the extra backslash (see backslash-escaped) that is required to escape the double quote on the terminal:

$ pywbemcli --name mymock instance delete root/cimv2:TST_Person.name=\"Saara\"

See pywbemcli instance delete –help for the exact help output of the command.

instance enumerate command

The instance enumerate command lists the CIM instances of the specified class (including subclasses) in a namespace.

The class is named with the CLASSNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

If the --names-only/--no command option is set, only the instance paths are displayed. Otherwise, the instances are displayed.

The --propertylist/--pl command option allows restricting the set of properties to be retrieved and displayed on the instances.

Valid output formats in both cases are CIM object output formats or Table output formats.

The following example returns two instances as MOF:

$ pywbemcli --name mymock instance enumerate TST_FamilyCollection

instance of TST_FamilyCollection {
   name = "family1";
};

instance of TST_FamilyCollection {
   name = "Family2";
};

See pywbemcli instance enumerate –help for the exact help output of the command.

instance get command

The instance get command gets a CIM instance.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

The --propertylist/--pl command option allows restricting the set of properties to be retrieved and displayed on the instance.

The command displays the instance using CIM object output formats or Table output formats.

This example gets an instance by instance name:

$ pywbemcli --name mymock instance get root/cimv2:TST_Person.name=\"Saara\"
instance of TST_Person {
   name = "Saara";
};

or using the keys wildcard:

$ pywbemcli --name mymock instance get root/cimv2:TST_Person.?
Pick Instance name to process
0: root/cimv2:CIM_Foo.InstanceID="CIM_Foo1"
1: root/cimv2:CIM_Foo.InstanceID="CIM_Foo2"
2: root/cimv2:CIM_Foo.InstanceID="CIM_Foo3"
Input integer between 0 and 2 or Ctrl-C to exit selection: 0   << entered by user
instance of TST_Person {
   name = "Saara";
};

See pywbemcli instance get –help for the exact help output of the command.

instance invokemethod command

The instance invokemethod command invokes a CIM method on the specified instance and displays the return value and any output parameters.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

Input parameters for the method can be specified with the --parameter/-p command option, which can be specified multiple times. For details, see Specifying CIM property and parameter values.

The return value and output parameters are displayed using CIM object output formats.

Example:

$ pywbemcli --mock-server tests/unit/all_types.mof --mock-server tests/unit/all_types_method_mock.py.py

pywbemcli> instance invokemethod PyWBEM_AllTypes.InstanceId=\"test_instance\" AllTypesMethod --parameter arrBool=True,False
ReturnValue=0
arrBool=true, false

Or using the wildcard to create a selection list for the instance names

$ pywbemcli --mock-server tests/unit/all_types.mof --mock-server tests/unit/all_types_method_mock.py.py

pywbemcli> instance invokemethod PyWBEM_AllTypes.? --parameter arrBool=True,False
Pick Instance name to process
0: root/cimv2:CIM_Foo.InstanceID="CIM_Foo1"
1: root/cimv2:CIM_Foo.InstanceID="CIM_Foo2"
2: root/cimv2:CIM_Foo.InstanceID="CIM_Foo3"
Input integer between 0 and 2 or Ctrl-C to exit selection: 0   << entered by user
ReturnValue=0
arrBool=true, false

See pywbemcli instance invokemethod –help for the exact help output of the command.

instance modify command

The instance modify command modifies the properties of an existing CIM instance.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

The new property values are specified by possibly multiple --property/-p command options. For details, see Specifying CIM property and parameter values.

Note that key properties cannot be modified, as per DSP0004.

The --propertylist/--pl command option allows restricting the set of properties to be modified. It is supported for consistency with the corresponding parameter at the CIM-XML protocol level, but given that the set of properties to be modified is already determined by the specified --property/-p command options, the --propertylist/--pl command option does not need to be specified.

Since the WBEM server (and pywbem) requires that each property be typed, pywbemcli retrieves the creation class from the WBEM server to determine the data types for the properties.

The following examples modifies an instance of the class TST_Blah with two scalar and one array property:

$ pywbemcli instance modify TST_Blah --property InstancId=blah1 --property IntProp=3 --property IntArr=3,6,9

$ pywbemcli instance modify TST_Blah --property InstancId=\"blah 2\" --property IntProp=3 --property IntArr=3,6,9

See pywbemcli instance modify –help for the exact help output of the command.

instance references command

The instance references command lists the CIM instances that reference the specified source instance.

The specification of the instance name (INSTANCENAME argument) is documented in the section Specifying the INSTANCENAME command argument.

If the --names-only/--no command option is set, only the instance paths are displayed. Otherwise, the instances are displayed.

Valid output formats in both cases are CIM object output formats or Table output formats.

Note: This command returns the instance references, not the class references. The class references command returns the class references.

Example:

$ pywbemcli --name mymock instance references root/cimv2:TST_Person.name=\"Saara\"
instance of TST_Lineage {
   InstanceID = "SaaraSofi";
   parent = "/root/cimv2:TST_Person.name=\"Saara\"";
   child = "/root/cimv2:TST_Person.name=\"Sofi\"";
};

See pywbemcli instance references –help for the exact help output of the command.

instance query command

The instance query command executes a query for CIM instances in a namespace.

The query is specified with the QUERY argument and must be a valid query in the query language specified with the --query-language/--ql command option. The default for that option is DMTF:CQL (see CQL).

The namespace is specified with the --namespace/-n command option, or otherwise is the default namespace of the connection.

Valid output formats are CIM object output formats or Table output formats.

See pywbemcli instance query –help for the exact help output of the command.

instance shrub command

The instance shrub command executes a set of requests to get the association relationships for a non-association CIM instance defined by INSTANCENAME in a namespace and displays the result either as tree in ascii or as a table showing the roles, reference classes, associated classes and associated instances for the input instance.

A shrub is a structure that attempts to show all of the relationships and the paths between the input INSTANCENAME and the associated instances whereas the References command only shows referencing(associator) classes or instances and the Associators command only shows associated classes or instances.

The namespace for the INSTANCENAME is specified with the -namespace/-n command option, or otherwise is the default namespace of the connection.

Valid output formats are Table output formats or the default which displays the a visual tree.

The instance shrub command includes command options to:

  1. --summary/-s: Show only the class components and a count of instances.
  2. --fullpath/-f: Show the full path of the instances. The default is to attempt to shorten the path by removing path components that are the same for all instances displayed. This can be important for some of the components of the model where instance paths include keys like CreationClassName and ‘SystemCreationClassName’which are either already known or do not distinguish instances but make the instance name difficult to visualize on the console. These key bindings are replaced with the character ~ as a placemarker unless the --fullpath/-f option is defined.

Thus, a full path might look like:

/:CIM_FCPort.SystemCreationClassName="CIM_ComputerSystem",SystemName="ACME+CF2A5091300089",CreationClassName="CIM_FCPort",DeviceID="ACME+CF2A5091300089+SP_A+10"

But the shortened path would be:

/:CIM_FCPort.~,~,~,DeviceID="ACME+CF2A5091300089+SP_A+10"

This command is primarily a diagnostic and test tool to help users understand what comprises CIM association relationships.

See pywbemcli instance shrub –help for the exact help output of the command.

Example:

$ pywbemcli instance shrub root/cimv2:TST_EP.InstanceID=1

TST_EP.InstanceID=1
 +-- Initiator(Role)
     +-- TST_A3(AssocClass)
         +-- Target(ResultRole)
         |   +-- TST_EP(ResultClass)(3 insts)
         |       +-- TST_EP.InstanceID=2(refinst:0)
         |       +-- TST_EP.InstanceID=5(refinst:1)
         |       +-- TST_EP.InstanceID=7(refinst:2)
         +-- LogicalUnit(ResultRole)
             +-- TST_LD(ResultClass)(3 insts)
                 +-- TST_LD.InstanceID=3(refinst:0)
                 +-- TST_LD.InstanceID=6(refinst:1)
                 +-- TST_LD.InstanceID=8(refinst:2)

This displays the Role (Initiator), AssociationClass (TST_A3), etc for the instance name defined in the command which is a complex association that contains 3 reference properties. The tag refinst on each instance defines the corresponding reference instance so that the instances returned can be correlated back to their reference instances.

The resulting table output for the same command but with -o table is:

Example:

$ pywbemcli -o table instance shrub root/cimv2:TST_EP.InstanceID=1

Shrub of root/cimv2:TST_EP.InstanceID=1
+-----------+-------------------+--------------+--------------------+-------------------------+
| Role      | Reference Class   | ResultRole   | Associated Class   | Assoc Inst paths        |
|-----------+-------------------+--------------+--------------------+-------------------------|
| Initiator | TST_A3            | Target       | TST_EP             | /:TST_EP.               |
|           |                   |              |                    | InstanceID=2(refinst:0) |
|           |                   |              |                    | /:TST_EP.               |
|           |                   |              |                    | InstanceID=5(refinst:1) |
|           |                   |              |                    | /:TST_EP.               |
|           |                   |              |                    | InstanceID=7(refinst:2) |
| Initiator | TST_A3            | LogicalUnit  | TST_LD             | /:TST_LD.               |
|           |                   |              |                    | InstanceID=3(refinst:0) |
|           |                   |              |                    | /:TST_LD.               |
|           |                   |              |                    | InstanceID=6(refinst:1) |
|           |                   |              |                    | /:TST_LD.               |
|           |                   |              |                    | InstanceID=8(refinst:2) |
+-----------+-------------------+--------------+--------------------+-------------------------+

qualifier command group

The qualifier command group has commands that act on CIM qualifier declarations:

qualifier get command

The qualifier get command gets the specified qualifier declaration.

The qualifier declaration is named with the QUALIFIERNAME argument and is in the namespace specified with the -namespace/-n command option, or otherwise in the default namespace of the connection.

The qualifier declaration is displayed using CIM object output formats or Table output formats.

The following example gets the Key qualifier declaration from the default namespace:

$ pywbemcli --name mymock qualifier get Key
Qualifier Key : boolean = false,
    Scope(property, reference),
    Flavor(DisableOverride, ToSubclass);

See pywbemcli qualifier get –help for the exact help output of the command.

qualifier enumerate command

The qualifier enumerate command enumerates the qualifier declarations in a namespace.

The namespace is specified with the -namespace/-n command option, or otherwise is the default namespace of the connection.

The qualifier declaration is displayed using CIM object output formats or Table output formats.

This example displays all of the qualifier declarations in the default namespace as a table:

$ pywbemcli --name mymock --output-format table qualifier enumerate
Qualifier Declarations
+-------------+---------+---------+---------+-------------+-----------------+
| Name        | Type    | Value   | Array   | Scopes      | Flavors         |
|-------------+---------+---------+---------+-------------+-----------------|
| Association | boolean | False   | False   | ASSOCIATION | DisableOverride |
|             |         |         |         |             | ToSubclass      |
| Description | string  |         | False   | ANY         | EnableOverride  |
|             |         |         |         |             | ToSubclass      |
|             |         |         |         |             | Translatable    |
| In          | boolean | True    | False   | PARAMETER   | DisableOverride |
|             |         |         |         |             | ToSubclass      |
| Key         | boolean | False   | False   | PROPERTY    | DisableOverride |
|             |         |         |         | REFERENCE   | ToSubclass      |
| Out         | boolean | False   | False   | PARAMETER   | DisableOverride |
|             |         |         |         |             | ToSubclass      |
+-------------+---------+---------+---------+-------------+-----------------+

See pywbemcli qualifier enumerate –help for the exact help output of the command.

server command group

The server command group has commands that interact with the WBEM server of the current connection to access information about the WBEM server itself:

server brand command

The server brand command gets the brand of the WBEM server of the current connection.

The brand is intended to identify the product that represents the WBEM server infrastructure. Since that was not clearly defined in the DMTF specifications, this command may return strange results for some servers, but it returns legitimate results for the most commonly used servers.

The brand is displayed using Table output formats.

Example:

$ pywbemcli --name myserver server brand
Server Brand:
+---------------------+
| WBEM server brand   |
|---------------------|
| OpenPegasus         |
+---------------------+

See pywbemcli server brand –help for the exact help output of the command.

server info command

The server info command gets general information on the WBEM server of the current connection.

This includes the brand, version, namespaces, and other reasonable information on the WBEM server.

The result is displayed using Table output formats.

Example:

$ pywbemcli --name myserver server info
Server General Information
+-------------+-----------+---------------------+-------------------------------+
| Brand       | Version   | Interop Namespace   | Namespaces                    |
|-------------+-----------+---------------------+-------------------------------|
| OpenPegasus | 2.15.0    | root/PG_InterOp     | root/PG_InterOp               |
|             |           |                     | root/benchmark                |
|             |           |                     | root/SampleProvider           |
|             |           |                     | test/CimsubTestNS2            |
|             |           |                     | test/CimsubTestNS3            |
|             |           |                     | test/CimsubTestNS0            |
|             |           |                     | test/CimsubTestNS1            |
|             |           |                     | root/PG_Internal              |
|             |           |                     | test/WsmTest                  |
|             |           |                     | test/TestIndSrcNS1            |
|             |           |                     | test/TestINdSrcNS2            |
|             |           |                     | test/EmbeddedInstance/Static  |
|             |           |                     | test/TestProvider             |
|             |           |                     | test/EmbeddedInstance/Dynamic |
|             |           |                     | root/cimv2                    |
|             |           |                     | root                          |
|             |           |                     | test/cimv2                    |
|             |           |                     | test/static                   |
+-------------+-----------+---------------------+-------------------------------+

See pywbemcli server info –help for the exact help output of the command.

server interop command

The server interop command gets the name of the Interop namespace of the WBEM server of the current connection.

The result is displayed using Table output formats.

Example:

$ pywbemcli --name myserver server interop
Server Interop Namespace:
+------------------+
| Namespace Name   |
|------------------|
| root/PG_InterOp  |
+------------------+

See pywbemcli server interop –help for the exact help output of the command.

server namespaces command

The server namespaces command lists the namespaces of the WBEM server of the current connection.

The result is displayed using Table output formats.

Example:

$ pywbemcli --name myserver --output-format plain server namespaces
Server Namespaces:
Namespace Name
root/PG_InterOp
root/benchmark
root/PG_Internal
test/WsmTest
test/EmbeddedInstance/Static
test/TestProvider
test/EmbeddedInstance/Dynamic
root/cimv2
root
test/cimv2
test/static

See pywbemcli server namespaces –help for the exact help output of the command.

server profiles command

The server profiles command lists the management profiles advertised by the WBEM server of the current connection.

The returned management profiles are displayed with organization, name, and version using the Table output formats.

The --organization/-o and --profile/ -p command options can be used to filter the returned management profiles by organization and name, respectively.

Example:

$ pywbemcli --name myserver --output-format simple server profiles
Advertised management profiles:
Organization    Registered Name           Version
--------------  ------------------------  ---------
DMTF            CPU                       1.0.0
DMTF            Computer System           1.0.0
DMTF            Ethernet Port             1.0.0
DMTF            Fan                       1.0.0
DMTF            Indications               1.1.0
DMTF            Profile Registration      1.0.0
Other           Some Other Subprofile     0.1.0
Other           Some Subprofile           0.1.0
Other           SomeSystemProfile         0.1.0
SNIA            Array                     1.1.0
SNIA            Block Server Performance  1.1.0
SNIA            Disk Drive Lite           1.1.0
SNIA            Indication                1.1.0
SNIA            Indication                1.2.0
SNIA            Profile Registration      1.0.0
SNIA            SMI-S                     1.2.0
SNIA            Server                    1.1.0
SNIA            Server                    1.2.0
SNIA            Software                  1.1.0
SNIA            Software                  1.2.0

See pywbemcli server profiles –help for the exact help output of the command.

server centralinsts command

The server centralinsts command gets the central instances of the management profiles advertised by the WBEM server of the current connection.

The command displays the instance paths of the central instances by profile, using the Table output formats.

The --organization/-o and --profile/ -p command options can be used to filter the result by organization and name of the management profiles, respectively.

Example:

$ pywbemcli server centralinsts --organization DMTF --profile "Computer System"
Advertised Central Instances:
+---------------------------------+----------------------------------------------------------------------------------------------------------------------+
| Profile                         | Central Instances                                                                                                    |
|---------------------------------+----------------------------------------------------------------------------------------------------------------------|
| DMTF:Computer System:1.0.0      | //leonard/test/TestProvider:Test_StorageSystem.Name="StorageSystemInstance1",CreationClassName="Test_StorageSystem"  |
|                                 | //leonard/test/TestProvider:Test_StorageSystem.Name="StorageSystemInstance2",CreationClassName="Test_StorageSystem"  |
+---------------------------------+----------------------------------------------------------------------------------------------------------------------+

See pywbemcli server centralinsts –help for the exact help output of the command.

connection command group

The connection command group has commands that manage named connection definitions that are persisted in a connections file. This allows maintaining multiple connection definitions and then using any one via the --name general option. Only a single connection is active (selected) at any point in time but the connection connection can be selected on the pywbemcli command line (--name general option) or changed within an interactive session using the connection select command

The attributes of each connection definition in the connections file are:

The commands in this group are:

connection delete command

The connection delete command deletes a connection definition from the connections file.

If the NAME argument is specified, the connection definition with that name is deleted. Otherwise, the command displays the list of connection definitions and prompts the user to select the one to be deleted. If there is only a single connection, that connection is deleted without the user selection request.

Example that deletes a connection definition by the specified name:

$ pywbemcli connection delete me

Example that deletes a connection definition by selecting it:

$ pywbemcli connection delete
Select a connection or Ctrl_C to abort.
0: mock1
1: mockassoc
2: op
Input integer between 0 and 2 or Ctrl-C to exit selection: 1   << entered by user
Deleted connection "mockassoc".

See pywbemcli connection delete –help for the exact help output of the command.

connection export command

The connection export command exports the current connection as a set of environment variables.

This is done by displaying the commands to set the environment variables.

$ pywbemcli --server http://localhost connection export
export PYWBEMCLI_SERVER=http://localhost
export PYWBEMCLI_DEFAULT_NAMESPACE=root/cimv2
export PYWBEMCLI_TIMEOUT=30
. . .

This can be used for example on Linux and OS-X to set the environment variables as follows:

$ eval $(pywbemcli --server http://localhost connection export)

$ env |grep PYWBEMCLI
PYWBEMCLI_SERVER=http://localhost
PYWBEMCLI_DEFAULT_NAMESPACE=root/cimv2
PYWBEMCLI_TIMEOUT=30
. . .

See pywbemcli connection export –help for the exact help output of the command.

connection list command

The connection list command lists the connection definitions in the connections file and the current connection(if it has not been saved to the connections file).

Valid output formats are Table output formats.

This shows which connection is the current connection and if any connection is set as the default connection (connection select command ).

The current connection is marked with * in the Name column. The default connection, if defined, is marked with # in the Name column.

The title also displays the path of the file that is being used as the current connections file.

pywbemcli> --server http://localhost --user me --password mypw --no-verify connection save me

pywbemcli> --server http://blahblah connection list
WBEM server connections(brief):  (#: default, *: current)
file: ./pywbemcli_connection_definitions.yaml
+--------------+------------------+----------------------------------------+
| name         | server           | mock-server                            |
|--------------+------------------+----------------------------------------|
| *blahblah    | http://blah      |                                        |
| mock1        |                  | tests/unit/simple_mock_model.mof       |
| mockalltypes |                  | tests/unit/all_types.mof               |
| mockassoc    |                  | tests/unit/simple_assoc_mock_model.mof |
| mockext      |                  | tests/unit/simple_mock_model_ext.mof   |
| op           | http://localhost |                                        |
| test3        |                  | tests/unit/simple_mock_model.mof       |
|              |                  | tests/unit/mock_confirm_y.py           |
+--------------+------------------+----------------------------------------+

A more complete display of the server parameters is available with the –full option as follows:

pywbemcli> connection list --full

WBEM server connections(full): (#: default, *: current)
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| name         | server               | namespace              | user        |   timeout | use_pull   | verify   | certfile   | keyfile   | mock-server                                      |
+==============+======================+========================+=============+===========+============+==========+============+===========+==================================================+
| #mockassoc   |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/simple_assoc_mock_model.mof           |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| alltypes     |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/all_types.mof                         |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| complexassoc |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/complex_assoc_model.mof               |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| mock1        |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/simple_mock_model.mof                 |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| mock1ext     |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/simple_mock_model_ext.mof             |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| mock1interop |                      | interop                |             |        30 |            | True     |            |           | tests/unit/simple_mock_model.mof                 |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| ophttp       | http://localhost     | root/cimv2             |             |        30 |            | True     |            |           |                                                  |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| ophttps      | https://localhost    | root/cimv2             | blahblah    |        30 |            | False    |            |           |                                                  |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| opt          | https://blah         | root/cimv2             |             |        45 |            | False    | c1.pem     | k1.pem    |                                                  |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+
| test1        |                      | root/cimv2             |             |        30 |            | True     |            |           | tests/unit/simple_assoc_mock_model.mof           |
+--------------+----------------------+------------------------+-------------+-----------+------------+----------+------------+-----------+--------------------------------------------------+

Connection list does not display some fields such as the ca-certs field. See connection show command for more detailed display of individual fields used by the server.

See pywbemcli connection list –help for the exact help output of the command.

connection save command

The connection save command saves the current connection in the connections file as a connection definition with the name specified in the NAME argument.

If a connection definition with that name already exists, it will be overwritten without notice.

See pywbemcli connection save –help for the exact help output of the command.

connection select command

The connection select command selects a connection definition from the connections file to become the current connection.

If the NAME argument is specified, the connection definition with that name is selected. Otherwise, the command displays the list of connection definitions and prompts the user to pick the one to be selected. If there is only a single connection, that connection is selected without the user request.

If the --default/-d command option is set, the connection definition in addition becomes the default connection, by marking it accordingly in the connections file.

The following example shows changing connection from within the interactive mode of pywbemcli:

$ pywbemcli

pywbemcli> connection select
Select a connection or Ctrl_C to abort.
0: mock1
1: mockassoc
2: op
Input integer between 0 and 2 or Ctrl-C to exit selection: 1   << entered by user

pywbemcli> connection list
WBEMServer Connections:   (#: default, *: current)
+------------+------------------+-------------+-------------+-----------+------------+-----------------------------------------+
| name       | server           | namespace   | user        |   timeout | verify     | mock-server                             |
|------------+------------------+-------------+-------------+-----------+------------+-----------------------------------------|
| mock1      |                  | root/cimv2  |             |        30 | False      | tests/unit/simple_mock_model.mof        |
| *mockassoc |                  | root/cimv2  |             |        30 | False      | tests/unit/simple_assoc_mock_model.mof  |
| op         | http://localhost | root/cimv2  | me          |        30 | True       |                                         |
+------------+------------------+-------------+-------------+-----------+------------+-----------------------------------------+

pywbemcli> connection show
name: mockassoc
  server: None
  default-namespace: root/cimv2
  user: None
  password: None
  timeout: 30
  no-verify: False
  certfile: None
  keyfile: None
  use-pull: either
  pull-max-cnt: 1000
  mock-server: tests/unit/simple_assoc_mock_model.mof
  log: None

See pywbemcli connection select –help for the exact help output of the command.

connection show command

The connection show command shows information about a connection definition:

  • If NAME is ?, pywbemcli prompts the user to select one and shows the existing current connection. If there is only a single connection the user selection is bypassed.
  • If NAME is specified, show the connection definition with that name.
  • If NAME is not specified, show the existing current connection.
pywbemcli -s http://blah connection show
name: not-saved (current)
  server: http://blah
  default-namespace: root/cimv2
  user: None
  password: None
  timeout: 30
  verify: True
  certfile: None
  keyfile: None
  mock-server:
  ca-certs: None

See pywbemcli connection show –help for the exact help output of the command.

connection test command

The connection test command executes a single predefined operation on the current connection to verify that accessing the WBEM server works.

The predefined operation is EnumerateClasses which attempts to enumerate the classes in the default namespace of the WBEM Server. Even if the server does not support the classes operations, this command should return a CIMError indicating that WBEM is supported (ex. CIM_ERR_NOT_SUPPORTED) indicating that WBEM is supported by the server.

If the –test-pull command option is included, pywbemcli will issue an instances request for each of the DMTF defined pull operations and report the results. This could be important because the pull operations are defined as optional and some server may not include them.

If the server accepts the request, a simple text OK <server url will be returned.

The following example defines the connection with --server, --user, and --password and executes the test with successful result:

$ pywbemcli --server http://localhost --user me --password mypw connection test
Connection successful

See pywbemcli connection test –help for the exact help output of the command.

repl command

The repl command sets pywbemcli into the Interactive mode. Pywbemcli can be started in the Interactive mode either by entering:

$ pywbemcli repl
Enter 'help' for help, <CTRL-D> or ':q' to exit pywbemcli.
pywbemcli>

or by executing the script without any command or command group:

$ pywbemcli
Enter 'help' for help, <CTRL-D> or ':q' to exit pywbemcli.
pywbemcli>

The repl mode is recognized by the prompt pywbemcli>.

Command history is available in the Interactive mode either by using <UP-ARROW> and <DOWN-ARROW> keys to step through the history file or by using incremental search of the command history.

An incremental search is initiated by <CTRL-r> (similar to some shells like bash) and does a search based on a string entered after the <CTRL-r> for the last command containing the search string. The search string may be modified and <UP_ARROW>, <DOWN-ARROW> will find other commands containing the search string. Hitting <ENTER> selects the currently shown command.

see Interactive mode for more details on using this mode and the search.

help command

The help command provides information on special commands and controls that can be executed in the Interactive mode including:

  • executing shell commands,
  • exiting pywbemcli,
  • getting help on commands,
  • viewing interactive mode command history.

This is different from the --help option that provides information on command groups, and commands.

$ pywbemcli help

The following can be entered in interactive mode:

  <pywbemcli-cmd>             Execute pywbemcli command <pywbemcli-cmd>.
  !<shell-cmd>                Execute shell command <shell-cmd>.

  <CTRL-D>, :q, :quit, :exit  Exit interactive mode.

  <TAB>                       Tab completion (can be used anywhere).
  -h, --help                  Show pywbemcli general help message, including a
                              list of pywbemcli commands.
  <pywbemcli-cmd> --help      Show help message for pywbemcli command
                              <pywbemcli-cmd>.
  help                        Show this help message.
  :?, :h, :help               Show help message about interactive mode.
  <up-arrow, down-arrow>      View pwbemcli command history:

pywbemcli Help Command Details

This section shows the help text for each pywbemcli command group and command.

Help text for pywbemcli:

Usage: pywbemcli [GENERAL-OPTIONS] COMMAND [ARGS] [COMMAND-OPTIONS]

  Pywbemcli is a command line WBEM client that uses the DMTF CIM-XML protocol to communicate with WBEM servers.
  Pywbemcli can:

  * Manage the information in WBEM servers CIM objects using the
    operations defined in the DMTF specification.  It can manage CIM
    classes, CIM instances and CIM qualifier declarations in the WBEM
    Server and execute CIM methods and queries on the server.

  * Inspect WBEM server characteristics including namespaces, registered
    profiles, and other server information.

  * Capture detailed information on communication with the WBEM
    server including time statistics and logs of the operations.

  * Maintain a persistent list of named connections to WBEM servers
    and execute operations on them by name.

  Pywbemcli implements command groups and commands to execute the CIM-XML operations defined by the DMTF CIM
  Operations Over HTTP specification (DSP0200).

  The general options shown below can also be specified on any of the commands, positioned right after the 'pywbemcli'
  command name.

  The width of help texts of this command can be set with the PYWBEMCLI_TERMWIDTH environment variable.

  For more detailed documentation, see:

      https://pywbemtools.readthedocs.io/en/stable/

General Options:
  -n, --name NAME                 Use the WBEM server defined by the WBEM connection definition NAME. This option is
                                  mutually exclusive with the --server and --mock-server options, since each defines a
                                  WBEM server. Default: EnvVar PYWBEMCLI_NAME, or none.

  -m, --mock-server FILE          Use a mock WBEM server that is automatically created in pywbemcli and populated with
                                  CIM objects that are defined in the specified MOF file or Python script file. See the
                                  pywbemcli documentation for more information. This option may be specified multiple
                                  times, and is mutually exclusive with the --server and --name options, since each
                                  defines a WBEM server. Default: EnvVar PYWBEMCLI_MOCK_SERVER, or none.

  -s, --server URL                Use the WBEM server at the specified URL with format: [SCHEME://]HOST[:PORT]. SCHEME
                                  must be "https" (default) or "http". HOST is a short or long hostname or literal
                                  IPV4/v6 address. PORT defaults to 5989 for https and 5988 for http. This option is
                                  mutually exclusive with the --mock-server and --name options, since each defines a
                                  WBEM server. Default: EnvVar PYWBEMCLI_SERVER, or none.

  -u, --user TEXT                 User name for the WBEM server. Default: EnvVar PYWBEMCLI_USER, or none.
  -p, --password TEXT             Password for the WBEM server. Default: EnvVar PYWBEMCLI_PASSWORD, or prompted for if
                                  --user specified.

  --verify / --no-verify          If --verify, client verifies the X.509 server certificate presented by the WBEM server
                                  during TLS/SSL handshake. If --no-verify client bypasses verification. Default: EnvVar
                                  PYWBEMCLI_VERIFY, or "--verify".

  --ca-certs CACERTS              Certificates used to validate the certificate presented by the WBEM server during
                                  TLS/SSL handshake: FILE: Use the certs in the specified PEM file; DIR: Use the certs
                                  in the PEM files in the specified directory; "certifi" (pywbem 1.0 or later): Use the
                                  certs provided by the certifi Python package; Default: EnvVar PYWBEMCLI_CA_CERTS, or
                                  "certifi" (pywbem 1.0 or later), or the certs in the PEM files in the first existing
                                  directory from from a system defined list of directories (pywbem before 1.0).

  -c, --certfile FILE             Path name of a PEM file containing a X.509 client certificate that is used to enable
                                  TLS/SSL 2-way authentication by presenting the certificate to the WBEM server during
                                  TLS/SSL handshake. Default: EnvVar PYWBEMCLI_CERTFILE, or none.

  -k, --keyfile FILE              Path name of a PEM file containing a X.509 private key that belongs to the certificate
                                  in the --certfile file. Not required if the private key is part of the --certfile
                                  file. Default: EnvVar PYWBEMCLI_KEYFILE, or none.

  -t, --timeout INT               Client-side timeout in seconds for operations with the WBEM server. Default: EnvVar
                                  PYWBEMCLI_TIMEOUT, or 30.

  -U, --use-pull [yes|no|either]  Determines whether pull operations are used for operations with the WBEM server that
                                  return lists of instances, as follows: "yes" uses pull operations and fails if not
                                  supported by the server; "no" uses traditional operations; "either" (default) uses
                                  pull operations if supported by the server, and otherwise traditional operations.
                                  Default: EnvVar PYWBEMCLI_USE_PULL, or "either".

  --pull-max-cnt INT              Maximum number of instances to be returned by the WBEM server in each open or pull
                                  response, if pull operations are used. This is a tuning parameter that does not affect
                                  the external behavior of the commands. Default: EnvVar PYWBEMCLI_PULL_MAX_CNT, or 1000

  -T, --timestats                 Show time statistics of WBEM server operations.
  -d, --default-namespace NAMESPACE
                                  Default namespace, to be used when commands do not specify the --namespace command
                                  option. Default: EnvVar PYWBEMCLI_DEFAULT_NAMESPACE, or root/cimv2.

  -o, --output-format FORMAT      Output format for the command result. The default and allowed output formats are
                                  command specific. The default output_format is None so that each command selects its
                                  own default format. FORMAT is: table formats: [table|plain|simple|grid|psql|rst|html];
                                  CIM object formats: [mof|xml|repr|txt]]; TEXT formats: [text].

  -l, --log COMP[=DEST[:DETAIL]],...
                                  Enable logging of the WBEM operations, defined by a list of log configuration strings
                                  with: COMP: [api|http|all]; DEST: [file|stderr], default: file; DETAIL:
                                  [all|paths|summary], default: all. Default: EnvVar PYWBEMCLI_LOG, or all.

  -v, --verbose / --no-verbose    Display extra information about the processing.
  --deprecation-warnings / --no-deprecation-warnings
                                  Enable deprecation warnings. Default: EnvVar PYWBEMCLI_DEPRECATION_WARNINGS, or true.
  -C, --connections-file FILE PATH
                                  File path of a YAML file containing named connection definitions. The default if this
                                  option is not specified is the file name "pywbemcli_connection_definitions.yaml" in
                                  the users home directory. EnvVar (PYWBEMCLI_CONNECTIONS_FILE)

  --pdb                           Pause execution in the built-in pdb debugger just before executing the command within
                                  pywbemcli. Default: EnvVar PYWBEMCLI_PDB, or false.

  --version                       Show the version of this command and the pywbem package.
  -h, --help                      Show this help message.

Commands:
  class       Command group for CIM classes.
  instance    Command group for CIM instances.
  qualifier   Command group for CIM qualifier declarations.
  server      Command group for WBEM servers.
  connection  Command group for WBEM connection definitions.
  help        Show help message for interactive mode.
  repl        Enter interactive mode (default).

pywbemcli class –help

Help text for pywbemcli class (see class command group):

Usage: pywbemcli [GENERAL-OPTIONS] class COMMAND [ARGS] [COMMAND-OPTIONS]

  Command group for CIM classes.

  This command group defines commands to inspect classes, invoke methods on classes, delete classes.

  Creation and modification of classes is not currently supported.

  In addition to the command-specific options shown in this help text, the general options (see 'pywbemcli --help')
  can also be specified before the 'class' keyword.

Command Options:
  -h, --help  Show this help message.

Commands:
  enumerate     List top classes or subclasses of a class in a namespace.
  get           Get a class.
  delete        Delete a class.
  invokemethod  Invoke a method on a class.
  references    List the classes referencing a class.
  associators   List the classes associated with a class.
  find          List the classes with matching class names on the server.
  tree          Show the subclass or superclass hierarchy for a class.
pywbemcli class associators –help

Help text for pywbemcli class associators (see class associators command):

Usage: pywbemcli [GENERAL-OPTIONS] class associators CLASSNAME [COMMAND-OPTIONS]

  List the classes associated with a class.

  List the CIM classes that are associated with the specified class (CLASSNAME argument) in the specified CIM
  namespace (--namespace option). If no namespace was specified, the default namespace of the connection is used.

  The classes to be retrieved can be filtered by the --role, --result-role, --assoc-class, and --result-class options.

  The --include-classorigin, --no-qualifiers, and --propertylist options determine which parts are included in each
  retrieved class.

  The --names-only option can be used to show only the class paths.

  In the output, the classes and class paths will be formatted as defined by the --output-format general option. Table
  formats on classes will be replaced with MOF format.

  Examples:

    pywbemcli -n myconn class associators CIM_Foo -n interop

Command Options:
  --ac, --assoc-class CLASSNAME   Filter the result set by association class name. Subclasses of the specified class
                                  also match.

  --rc, --result-class CLASSNAME  Filter the result set by result class name. Subclasses of the specified class also
                                  match.

  -r, --role PROPERTYNAME         Filter the result set by source end role name.
  --rr, --result-role PROPERTYNAME
                                  Filter the result set by far end role name.
  --nq, --no-qualifiers           Do not include qualifiers in the returned class(es). Default: Include qualifiers.
  --ico, --include-classorigin    Include class origin information in the returned class(es). Default: Do not include
                                  class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  -h, --help                      Show this help message.
pywbemcli class delete –help

Help text for pywbemcli class delete (see class delete command):

Usage: pywbemcli [GENERAL-OPTIONS] class delete CLASSNAME [COMMAND-OPTIONS]

  Delete a class.

  Delete a CIM class (CLASSNAME argument) in a CIM namespace (--namespace option). If no namespace was specified, the
  default namespace of the connection is used.

  If the class has subclasses, the command is rejected.

  If the class has instances, the command is rejected, unless the --force option was specified, in which case the
  instances are also deleted.

  WARNING: Deleting classes can cause damage to the server: It can impact instance providers and other components in
  the server. Use this command with caution.

  Many WBEM servers may not allow this operation or may severely limit the conditions under which a class can be
  deleted from the server.

  Example:

    pywbemcli -n myconn class delete CIM_Foo -n interop

Command Options:
  -f, --force                Delete any instances of the class as well. Some servers may still reject the class
                             deletion. Default: Reject command if the class has any instances.

  -n, --namespace NAMESPACE  Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                 Show this help message.
pywbemcli class enumerate –help

Help text for pywbemcli class enumerate (see class enumerate command):

Usage: pywbemcli [GENERAL-OPTIONS] class enumerate CLASSNAME [COMMAND-OPTIONS]

  List top classes or subclasses of a class in a namespace.

  Enumerate CIM classes starting either at the top of the class hierarchy in the specified CIM namespace (--namespace
  option), or at the specified class (CLASSNAME argument) in the specified namespace. If no namespace was specified,
  the default namespace of the connection is used.

  The --local-only, --include-classorigin, and --no-qualifiers options determine which parts are included in each
  retrieved class.

  The --deep-inheritance option defines whether or not the complete subclass hierarchy of the classes is retrieved.

  The --names-only option can be used to show only the class paths.

  In the output, the classes and class paths will be formatted as defined by the --output-format general option. Table
  formats on classes will be replaced with MOF format.

  Examples:

    pywbemcli -n myconn class enumerate -n interop

    pywbemcli -n myconn class enumerate CIM_Foo -n interop

Command Options:
  --di, --deep-inheritance        Include the complete subclass hierarchy of the requested classes in the result set.
                                  Default: Do not include subclasses.

  --lo, --local-only              Do not include superclass properties and methods in the returned class(es). Default:
                                  Include superclass properties and methods.

  --nq, --no-qualifiers           Do not include qualifiers in the returned class(es). Default: Include qualifiers.
  --ico, --include-classorigin    Include class origin information in the returned class(es). Default: Do not include
                                  class origin information.

  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  --association / --no-association
                                  Filter the returned classes to return only indication classes (--association) or
                                  classes that are not associations(--no-association). If the option is not defined no
                                  filtering occurs

  --indication / --no-indication  Filter the returned classes to return only indication classes (--indication) or
                                  classes that are not indications (--no-indication). If the option is not defined no
                                  filtering occurs

  --experimental / --no-experimental
                                  Filter the returned classes to return only experimental classes (--experimental) or
                                  classes that are not experimental (--no-iexperimental). If the option is not defined
                                  no filtering occurs

  -h, --help                      Show this help message.
pywbemcli class find –help

Help text for pywbemcli class find (see class find command):

Usage: pywbemcli [GENERAL-OPTIONS] class find CLASSNAME-GLOB [COMMAND-OPTIONS]

  List the classes with matching class names on the server.

  Find the CIM classes whose class name matches the specified wildcard expression (CLASSNAME-GLOB argument) in all CIM
  namespaces of the WBEM server, or in the specified namespace (--namespace option).

  The CLASSNAME-GLOB argument is a wildcard expression that is matched on class names case insensitively. The special
  characters from Unix file name wildcarding are supported ('*' to match zero or more characters, '?' to match a
  single character, and '[]' to match character ranges). To avoid shell expansion of wildcard characters, the
  CLASSNAME-GLOB argument should be put in quotes.

  For example, "pywbem_*" returns classes whose name begins with "PyWBEM_", "pywbem_", etc. "*system*" returns classes
  whose names include the case insensitive string "system".

  In the output, the classes will be formatted as defined by the --output-format general option if it specifies table
  output. Otherwise the classes will be in the form "NAMESPACE:CLASSNAME".

  Examples:

    pywbemcli -n myconn class find "CIM_*System*" -n interop

    pywbemcli -n myconn class find *Foo*

Command Options:
  -n, --namespace NAMESPACE       Add a namespace to the search scope. May be specified multiple times. Default: Search
                                  in all namespaces of the server.

  -s, --sort                      Sort by namespace. Default is to sort by classname
  --association / --no-association
                                  Filter the returned classes to return only indication classes (--association) or
                                  classes that are not associations(--no-association). If the option is not defined no
                                  filtering occurs

  --indication / --no-indication  Filter the returned classes to return only indication classes (--indication) or
                                  classes that are not indications (--no-indication). If the option is not defined no
                                  filtering occurs

  --experimental / --no-experimental
                                  Filter the returned classes to return only experimental classes (--experimental) or
                                  classes that are not experimental (--no-iexperimental). If the option is not defined
                                  no filtering occurs

  -h, --help                      Show this help message.
pywbemcli class get –help

Help text for pywbemcli class get (see class get command):

Usage: pywbemcli [GENERAL-OPTIONS] class get CLASSNAME [COMMAND-OPTIONS]

  Get a class.

  Get a CIM class (CLASSNAME argument) in a CIM namespace (--namespace option). If no namespace was specified, the
  default namespace of the connection is used.

  The --local-only, --include-classorigin, --no-qualifiers, and --propertylist options determine which parts are
  included in each retrieved class.

  In the output, the class will be formatted as defined by the --output-format general option. Table formats are
  replaced with MOF format.

  Example:

    pywbemcli -n myconn class get CIM_Foo -n interop

Command Options:
  --lo, --local-only              Do not include superclass properties and methods in the returned class(es). Default:
                                  Include superclass properties and methods.

  --nq, --no-qualifiers           Do not include qualifiers in the returned class(es). Default: Include qualifiers.
  --ico, --include-classorigin    Include class origin information in the returned class(es). Default: Do not include
                                  class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                      Show this help message.
pywbemcli class invokemethod –help

Help text for pywbemcli class invokemethod (see class invokemethod command):

Usage: pywbemcli [GENERAL-OPTIONS] class invokemethod CLASSNAME METHODNAME [COMMAND-OPTIONS]

  Invoke a method on a class.

  Invoke a static CIM method (METHODNAME argument) on a CIM class (CLASSNAME argument) in a CIM namespace (--namespace
  option), and display the method return value and output parameters. If no namespace was specified, the default
  namespace of the connection is used.

  The method input parameters are specified using the --parameter option, which may be specified multiple times.

  Pywbemcli retrieves the class definition from the server in order to verify that the specified input parameters are
  consistent with the parameter characteristics in the method definition.

  Use the 'instance invokemethod' command to invoke CIM methods on CIM instances.

  Example:

    pywbemcli -n myconn class invokemethod CIM_Foo methodx -p p1=9 -p p2=Fred

Command Options:
  -p, --parameter PARAMETERNAME=VALUE
                                  Specify a method input parameter with its value. May be specified multiple times.
                                  Default: No input parameters.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                      Show this help message.
pywbemcli class references –help

Help text for pywbemcli class references (see class references command):

Usage: pywbemcli [GENERAL-OPTIONS] class references CLASSNAME [COMMAND-OPTIONS]

  List the classes referencing a class.

  List the CIM (association) classes that reference the specified class (CLASSNAME argument) in the specified CIM
  namespace (--namespace option). If no namespace was specified, the default namespace of the connection is used.

  The classes to be retrieved can be filtered by the --role and --result-class options.

  The --include-classorigin, --no-qualifiers, and --propertylist options determine which parts are included in each
  retrieved class.

  The --names-only option can be used to show only the class paths.

  In the output, the classes and class paths will be formatted as defined by the --output-format general option. Table
  formats on classes will be replaced with MOF format.

  Examples:

    pywbemcli -n myconn class references CIM_Foo -n interop

Command Options:
  --rc, --result-class CLASSNAME  Filter the result set by result class name. Subclasses of the specified class also
                                  match.

  -r, --role PROPERTYNAME         Filter the result set by source end role name.
  --nq, --no-qualifiers           Do not include qualifiers in the returned class(es). Default: Include qualifiers.
  --ico, --include-classorigin    Include class origin information in the returned class(es). Default: Do not include
                                  class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  -h, --help                      Show this help message.
pywbemcli class tree –help

Help text for pywbemcli class tree (see class tree command):

Usage: pywbemcli [GENERAL-OPTIONS] class tree CLASSNAME [COMMAND-OPTIONS]

  Show the subclass or superclass hierarchy for a class.

  List the subclass or superclass hierarchy of a CIM class (CLASSNAME argument) or CIM namespace (--namespace option):

  - If CLASSNAME is omitted, the complete class hierarchy of the specified   namespace is retrieved.

  - If CLASSNAME is specified but not --superclasses, the class and its   subclass hierarchy in the specified
  namespace are retrieved.

  - If CLASSNAME and --superclasses are specified, the class and its   superclass ancestry up to the top-level class
  in the specified namespace   are retrieved.

  If no namespace was specified, the default namespace of the connection is used.

  In the output, the classes will formatted as a ASCII graphical tree; the --output-format general option is ignored.

  Examples:

    pywbemcli -n myconn class tree -n interop

    pywbemcli -n myconn class tree CIM_Foo -n interop

    pywbemcli -n myconn class tree CIM_Foo -s -n interop

Command Options:
  -s, --superclasses         Show the superclass hierarchy. Default: Show the subclass hierarchy.
  -n, --namespace NAMESPACE  Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                 Show this help message.

pywbemcli connection –help

Help text for pywbemcli connection (see connection command group):

Usage: pywbemcli [GENERAL-OPTIONS] connection COMMAND [ARGS] [COMMAND-OPTIONS]

  Command group for WBEM connection definitions.

  This command group defines commands to manage persistent WBEM connection definitions that have a name. The
  connection definitions are stored in a connections file named 'pywbemcli_connection_definitions.yaml' in the current
  directory. The connection definition name can be used as a shorthand for the WBEM server via the '--name' general
  option.

  In addition to the command-specific options shown in this help text, the general options (see 'pywbemcli --help')
  can also be specified before the 'connection' keyword.

Command Options:
  -h, --help  Show this help message.

Commands:
  export  Export the current connection.
  show    Show a WBEM connection definition or the current connection.
  delete  Delete a WBEM connection definition.
  select  Select a WBEM connection definition as current or default.
  test    Test the current connection with a predefined WBEM request.
  save    Save the current connection to a new WBEM connection definition.
  list    List the WBEM connection definitions.
pywbemcli connection delete –help

Help text for pywbemcli connection delete (see connection delete command):

Usage: pywbemcli [GENERAL-OPTIONS] connection delete NAME [COMMAND-OPTIONS]

  Delete a WBEM connection definition.

  Delete a named connection definition from the connections file. If the NAME argument is omitted, prompt for
  selecting one of the connection definitions in the connections file.

  Example:

    pywbemcli connection delete blah

Command Options:
  -h, --help  Show this help message.
pywbemcli connection export –help

Help text for pywbemcli connection export (see connection export command):

Usage: pywbemcli [GENERAL-OPTIONS] connection export [COMMAND-OPTIONS]

  Export the current connection.

  Display commands that set pywbemcli environment variables to the parameters of the current connection.

  Examples:

    pywbemcli --name srv1 connection export

    pywbemcli --server https://srv1 --user me --password pw connection export

Command Options:
  -h, --help  Show this help message.
pywbemcli connection list –help

Help text for pywbemcli connection list (see connection list command):

Usage: pywbemcli [GENERAL-OPTIONS] connection list [COMMAND-OPTIONS]

  List the WBEM connection definitions.

  This command displays all entries in the connections file and the current connection if it exists and is not in the
  connections file as a table.

  '#' before the name indicates the default connection.
  '*' before the name indicates that it is the current connection.

  See also the 'connection select' command.

Command Options:
  -f, --full  If set, display the full table. Otherwise display a brief view(name, server, mock_server columns).
  -h, --help  Show this help message.
pywbemcli connection save –help

Help text for pywbemcli connection save (see connection save command):

Usage: pywbemcli [GENERAL-OPTIONS] connection save NAME [COMMAND-OPTIONS]

  Save the current connection to a new WBEM connection definition.

  Save the current connection to the connections file as a connection definition named NAME. The NAME argument is
  required. If a connection definition with that name already exists, it is overwritten without warning.

  In the interactive mode, general options that are connection related are applied to the current connection before it
  is saved.

  Examples:

    pywbemcli --server https://srv1 connection save mysrv

Command Options:
  -h, --help  Show this help message.
pywbemcli connection select –help

Help text for pywbemcli connection select (see connection select command):

Usage: pywbemcli [GENERAL-OPTIONS] connection select NAME [COMMAND-OPTIONS]

  Select a WBEM connection definition as current or default.

  Select the connection definition named NAME from the connections file to be the current connection. The connection
  definition in the connections file must exist. If the NAME argument is omitted, a list of connection definitions
  from the connections file is presented with a prompt for the user to select a connection definition.

  If the --default option is set, the default connection is set to the selected connection definition, in addition.
  Once defined, the default connection will be used as a default in future executions of pywbemcli if none of the
  server-defining general options (i.e. --server, --mock-server, or --name) was used.

  The 'connection list' command marks the current connection with '*' and the default connection with '#'.

  Example of selecting a default connection in command mode:

    pywbemcli connection select myconn --default
    pywbemcli connection show
    name: myconn
      . . .

  Example of selecting just the current connection in interactive mode:

    pywbemcli
    pywbemcli> connection select myconn
    pywbemcli> connection show
    name: myconn
      . . .

Command Options:
  -d, --default  If set, the connection is set to be the default connection in the connections file in addition to
                 setting it as the current connection.

  -h, --help     Show this help message.
pywbemcli connection show –help

Help text for pywbemcli connection show (see connection show command):

Usage: pywbemcli [GENERAL-OPTIONS] connection show NAME [COMMAND-OPTIONS]

  Show a WBEM connection definition or the current connection.

  Show the name and attributes of a WBEM connection definition or the current connection, as follows:

  * If the NAME argument is specified, the connection definition with that   name from the connections file is shown.

  * If the NAME argument is '?', the command presents a list of connection   definitions from the connections file and
  prompts the user for   selecting one, which is then shown.

  * If the NAME argument is omitted, the current connection is shown.

  Example showing a named connection definition:

    pywbemcli connection show svr1
      name: svr1
      ...

  Example for prompting for a connection definition:

    pywbemcli connection show ?
      0: svr1
      1: svr2
    Input integer between 0 and 2 or Ctrl-C to exit selection: : 0
      name: svr1
        ...

Command Options:
  --show-password  If set, show existing password in results. Otherwise, password is masked
  -h, --help       Show this help message.
pywbemcli connection test –help

Help text for pywbemcli connection test (see connection test command):

Usage: pywbemcli [GENERAL-OPTIONS] connection test [COMMAND-OPTIONS]

  Test the current connection with a predefined WBEM request.

  Execute the EnumerateClassNames operation on the default namespace against the current connection to confirm that
  the connection exists and is working.

  Examples:

    pywbemcli --name mysrv connection test

Command Options:
  --test-pull  If set, the connection is tested to determine if theDMTF defined pull operations (ex.
               OpenEnumerateInstancesare implemented since these are optional.

  -h, --help   Show this help message.

pywbemcli help –help

Help text for pywbemcli help (see help command):

Usage: pywbemcli [GENERAL-OPTIONS] help

  Show help message for interactive mode.

Command Options:
  -h, --help  Show this help message.

pywbemcli instance –help

Help text for pywbemcli instance (see instance command group):

Usage: pywbemcli [GENERAL-OPTIONS] instance COMMAND [ARGS] [COMMAND-OPTIONS]

  Command group for CIM instances.

  This command group defines commands to inspect instances, to invoke methods on instances, and to create and delete
  instances.

  Modification of instances is not currently supported.

  In addition to the command-specific options shown in this help text, the general options (see 'pywbemcli --help')
  can also be specified before the 'instance' keyword.

Command Options:
  -h, --help  Show this help message.

Commands:
  enumerate     List the instances of a class.
  get           Get an instance of a class.
  delete        Delete an instance of a class.
  create        Create an instance of a class in a namespace.
  modify        Modify properties of an instance.
  associators   List the instances associated with an instance.
  references    List the instances referencing an instance.
  invokemethod  Invoke a method on an instance.
  query         Execute a query on instances in a namespace.
  count         Count the instances of each class with matching class name.
  shrub         Show the association shrub for INSTANCENAME.
pywbemcli instance associators –help

Help text for pywbemcli instance associators (see instance associators command):

Usage: pywbemcli [GENERAL-OPTIONS] instance associators INSTANCENAME [COMMAND-OPTIONS]

  List the instances associated with an instance.

  List the CIM instances that are associated with the specified CIM instance, and display the returned instances, or
  instance paths if --names-only was specified.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  The instances to be retrieved can be filtered by the --filter-query, --role, --result-role, --assoc-class, and
  --result-class options.

  The --include-qualifiers, --include-classorigin, and --propertylist options determine which parts are included in
  each retrieved instance.

  The --names-only option can be used to show only the instance paths.

  In the output, the instances and instance paths will be formatted as defined by the --output-format general option.
  Table formats on instances will be replaced with MOF format.

Command Options:
  --ac, --assoc-class CLASSNAME   Filter the result set by association class name. Subclasses of the specified class
                                  also match.

  --rc, --result-class CLASSNAME  Filter the result set by result class name. Subclasses of the specified class also
                                  match.

  -r, --role PROPERTYNAME         Filter the result set by source end role name.
  --rr, --result-role PROPERTYNAME
                                  Filter the result set by far end role name.
  --iq, --include-qualifiers      When traditional operations are used, include qualifiers in the returned instances.
                                  Some servers may ignore this option. By default, and when pull operations are used,
                                  qualifiers will never be included.

  --ico, --include-classorigin    Include class origin information in the returned instance(s). Some servers may ignore
                                  this option. Default: Do not include class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  --fq, --filter-query QUERY-STRING
                                  When pull operations are used, filter the instances in the result via a filter query.
                                  By default, and when traditional operations are used, no such filtering takes place.

  --fql, --filter-query-language QUERY-LANGUAGE
                                  The filter query language to be used with --filter-query. Default: DMTF:FQL.
  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.
pywbemcli instance count –help

Help text for pywbemcli instance count (see instance count command):

Usage: pywbemcli [GENERAL-OPTIONS] instance count CLASSNAME-GLOB [COMMAND-OPTIONS]

  Count the instances of each class with matching class name.

  Display the count of instances of each CIM class whose class name matches the specified wildcard expression
  (CLASSNAME-GLOB) in all CIM namespaces of the WBEM server, or in the specified namespaces (--namespace option).
  This differs from instance enumerate, etc. in that it counts the instances specifically for the classname of each
  instance returned, not including subclasses.

  The CLASSNAME-GLOB argument is a wildcard expression that is matched on class names case insensitively. The special
  characters from Unix file name wildcarding are supported ('*' to match zero or more characters, '?' to match a
  single character, and '[]' to match character ranges). To avoid shell expansion of wildcard characters, the
  CLASSNAME-GLOB argument should be put in quotes.

  If CLASSNAME-GLOB is not specified, then all classes in the specified namespaces are counted (same as when
  specifying CLASSNAME-GLOB as "*").

  For example, "pywbem_*" returns classes whose name begins with "PyWBEM_", "pywbem_", etc. "*system*" returns classes
  whose names include the case insensitive string "system".

  This command can take a long time to execute since it potentially enumerates all instance names for all classes in
  all namespaces.

Command Options:
  -n, --namespace NAMESPACE       Add a namespace to the search scope. May be specified multiple times. Default: Search
                                  in all namespaces of the server.

  --association / --no-association
                                  Filter the returned classes to return only indication classes (--association) or
                                  classes that are not associations(--no-association). If the option is not defined no
                                  filtering occurs

  --indication / --no-indication  Filter the returned classes to return only indication classes (--indication) or
                                  classes that are not indications (--no-indication). If the option is not defined no
                                  filtering occurs

  --experimental / --no-experimental
                                  Filter the returned classes to return only experimental classes (--experimental) or
                                  classes that are not experimental (--no-iexperimental). If the option is not defined
                                  no filtering occurs

  -s, --sort                      Sort by instance count. Otherwise sorted by class name.
  -h, --help                      Show this help message.
pywbemcli instance create –help

Help text for pywbemcli instance create (see instance create command):

Usage: pywbemcli [GENERAL-OPTIONS] instance create CLASSNAME [COMMAND-OPTIONS]

  Create an instance of a class in a namespace.

  Create a CIM instance of the specified creation class (CLASSNAME argument) in the specified CIM namespace
  (--namespace option), with the specified properties (--property options) and display the CIM instance path of the
  created instance. If no namespace was specified, the default namespace of the connection is used.

  The properties to be initialized and their new values are specified using the --property option, which may be
  specified multiple times.

  Pywbemcli retrieves the class definition from the server in order to verify that the specified properties are
  consistent with the property characteristics in the class definition.

  Example:

    pywbemcli instance create CIM_blah -P id=3 -P arr="bla bla",foo

Command Options:
  -p, --property PROPERTYNAME=VALUE
                                  Initial property value for the new instance. May be specified multiple times. Array
                                  property values are specified as a comma-separated list; embedded instances are not
                                  supported. Default: No initial properties provided.

  -V, --verify                    Prompt for confirmation before performing a change, to allow for verification of
                                  parameters. Default: Do not prompt for confirmation.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                      Show this help message.
pywbemcli instance delete –help

Help text for pywbemcli instance delete (see instance delete command):

Usage: pywbemcli [GENERAL-OPTIONS] instance delete INSTANCENAME [COMMAND-OPTIONS]

  Delete an instance of a class.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

Command Options:
  -k, --key KEYNAME=VALUE    Value for a key in keybinding of CIM instance name. May be specified multiple times. Allows
                             defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE  Namespace to use for this command, instead of the default namespace of the connection.
  --hi, --help-instancename  Show help message for specifying INSTANCENAME including use of the --key and --namespace
                             options.

  -h, --help                 Show this help message.
pywbemcli instance enumerate –help

Help text for pywbemcli instance enumerate (see instance enumerate command):

Usage: pywbemcli [GENERAL-OPTIONS] instance enumerate CLASSNAME [COMMAND-OPTIONS]

  List the instances of a class.

  Enumerate the CIM instances of the specified class (CLASSNAME argument), including instances of subclasses in the
  specified CIM namespace (--namespace option), and display the returned instances, or instance paths if --names-only
  was specified. If no namespace was specified, the default namespace of the connection is used.

  The instances to be retrieved can be filtered by the --filter-query option.

  The --local-only, --deep-inheritance, --include-qualifiers, --include-classorigin, and --propertylist options
  determine which parts are included in each retrieved instance.

  The --names-only option can be used to show only the instance paths.

  In the output, the instances and instance paths will be formatted as defined by the --output-format general option.
  Table formats on instances will be replaced with MOF format.

Command Options:
  --lo, --local-only              When traditional operations are used, do not include superclass properties in the
                                  returned instances. Some servers may ignore this option. By default, and when pull
                                  operations are used, superclass properties will always be included.

  --di, --deep-inheritance        Include subclass properties in the returned instances. Default: Do not include
                                  subclass properties.

  --iq, --include-qualifiers      When traditional operations are used, include qualifiers in the returned instances.
                                  Some servers may ignore this option. By default, and when pull operations are used,
                                  qualifiers will never be included.

  --ico, --include-classorigin    Include class origin information in the returned instance(s). Some servers may ignore
                                  this option. Default: Do not include class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -s, --summary                   Show only a summary (count) of the objects.
  --fq, --filter-query QUERY-STRING
                                  When pull operations are used, filter the instances in the result via a filter query.
                                  By default, and when traditional operations are used, no such filtering takes place.

  --fql, --filter-query-language QUERY-LANGUAGE
                                  The filter query language to be used with --filter-query. Default: DMTF:FQL.
  -h, --help                      Show this help message.
pywbemcli instance get –help

Help text for pywbemcli instance get (see instance get command):

Usage: pywbemcli [GENERAL-OPTIONS] instance get INSTANCENAME [COMMAND-OPTIONS]

  Get an instance of a class.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  The --local-only, --include-qualifiers, --include-classorigin, and --propertylist options determine which parts are
  included in the retrieved instance.

  In the output, the instance will formatted as defined by the --output-format general option.

Command Options:
  --lo, --local-only              Do not include superclass properties in the returned instance. Some servers may ignore
                                  this option. Default: Include superclass properties.

  --iq, --include-qualifiers      Include qualifiers in the returned instance. Not all servers return qualifiers on
                                  instances. Default: Do not include qualifiers.

  --ico, --include-classorigin    Include class origin information in the returned instance(s). Some servers may ignore
                                  this option. Default: Do not include class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.
pywbemcli instance invokemethod –help

Help text for pywbemcli instance invokemethod (see instance invokemethod command):

Usage: pywbemcli [GENERAL-OPTIONS] instance invokemethod INSTANCENAME METHODNAME [COMMAND-OPTIONS]

  Invoke a method on an instance.

  Invoke a CIM method (METHODNAME argument) on a CIM instance with the specified input parameters (--parameter
  options), and display the method return value and output parameters.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  The method input parameters are specified using the --parameter option, which may be specified multiple times.

  Pywbemcli retrieves the class definition of the creation class of the instance from the server in order to verify
  that the specified input parameters are consistent with the parameter characteristics in the method definition.

  Use the 'class invokemethod' command to invoke CIM methods on CIM classes.

  Example:

    pywbemcli -n myconn instance invokemethod CIM_x.id='hi" methodx -p id=3

Command Options:
  -p, --parameter PARAMETERNAME=VALUE
                                  Specify a method input parameter with its value. May be specified multiple times.
                                  Array property values are specified as a comma-separated list; embedded instances are
                                  not supported. Default: No input parameters.

  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.
pywbemcli instance modify –help

Help text for pywbemcli instance modify (see instance modify command):

Usage: pywbemcli [GENERAL-OPTIONS] instance modify INSTANCENAME [COMMAND-OPTIONS]

  Modify properties of an instance.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  The properties to be modified and their new values are specified using the --property option, which may be specified
  multiple times.

  The --propertylist option allows restricting the set of properties to be modified. Given that the set of properties
  to be modified is already determined by the specified --property options, it does not need to be specified.

  Example:

    pywbemcli instance modify CIM_blah.fred=3 -P id=3 -P arr="bla bla",foo

Command Options:
  -p, --property PROPERTYNAME=VALUE
                                  Property to be modified, with its new value. May be specified once for each property
                                  to be modified. Array property values are specified as a comma-separated list;
                                  embedded instances are not supported. Default: No properties modified.

  --pl, --propertylist PROPERTYLIST
                                  Reduce the properties to be modified (as per --property) to a specific property list.
                                  Multiple properties may be specified with either a comma-separated list or by using
                                  the option multiple times. The empty string will cause no properties to be modified.
                                  Default: Do not reduce the properties to be modified.

  -V, --verify                    Prompt for confirmation before performing a change, to allow for verification of
                                  parameters. Default: Do not prompt for confirmation.

  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.
pywbemcli instance query –help

Help text for pywbemcli instance query (see instance query command):

Usage: pywbemcli [GENERAL-OPTIONS] instance query QUERY-STRING [COMMAND-OPTIONS]

  Execute a query on instances in a namespace.

  Execute the specified query (QUERY_STRING argument) in the specified CIM namespace (--namespace option), and display
  the returned instances. If no namespace was specified, the default namespace of the connection is used.

  In the output, the instances will formatted as defined by the --output-format general option.

Command Options:
  --ql, --query-language QUERY-LANGUAGE
                                  The query language to be used with --query. Default: DMTF:CQL.
  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  -h, --help                      Show this help message.
pywbemcli instance references –help

Help text for pywbemcli instance references (see instance references command):

Usage: pywbemcli [GENERAL-OPTIONS] instance references INSTANCENAME [COMMAND-OPTIONS]

  List the instances referencing an instance.

  List the CIM (association) instances that reference the specified CIM instance, and display the returned instances,
  or instance paths if --names-only was specified.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  The instances to be retrieved can be filtered by the --filter-query, --role and --result-class options.

  The --include-qualifiers, --include-classorigin, and --propertylist options determine which parts are included in
  each retrieved instance.

  The --names-only option can be used to show only the instance paths.

  In the output, the instances and instance paths will be formatted as defined by the --output-format general option.
  Table formats on instances will be replaced with MOF format.

Command Options:
  --rc, --result-class CLASSNAME  Filter the result set by result class name. Subclasses of the specified class also
                                  match.

  -r, --role PROPERTYNAME         Filter the result set by source end role name.
  --iq, --include-qualifiers      When traditional operations are used, include qualifiers in the returned instances.
                                  Some servers may ignore this option. By default, and when pull operations are used,
                                  qualifiers will never be included.

  --ico, --include-classorigin    Include class origin information in the returned instance(s). Some servers may ignore
                                  this option. Default: Do not include class origin information.

  --pl, --propertylist PROPERTYLIST
                                  Filter the properties included in the returned object(s). Multiple properties may be
                                  specified with either a comma-separated list or by using the option multiple times.
                                  Properties specified in this option that are not in the object(s) will be ignored. The
                                  empty string will include no properties. Default: Do not filter properties.

  --no, --names-only              Retrieve only the object paths (names). Default: Retrieve the complete objects
                                  including object paths.

  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  --fq, --filter-query QUERY-STRING
                                  When pull operations are used, filter the instances in the result via a filter query.
                                  By default, and when traditional operations are used, no such filtering takes place.

  --fql, --filter-query-language QUERY-LANGUAGE
                                  The filter query language to be used with --filter-query. Default: DMTF:FQL.
  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.
pywbemcli instance shrub –help

Help text for pywbemcli instance shrub (see instance shrub command):

Usage: pywbemcli [GENERAL-OPTIONS] instance shrub INSTANCENAME [COMMAND-OPTIONS]

  Show the association shrub for INSTANCENAME.

  The shrub is a view of all of the instance association relationships for a defined INSTANCENAME showing the various
  components that are part of the association including Role, AssocClasse,ResultRole, And ResultClas

  The default view is a tree view from the INSTANCENAME to associated instances.

  Displays the shrub of association components for the association source instance defined by INSTANCENAME.

  For information on how to specify the instance using INSTANCENAME and the --key and --namespace options, invoke with
  --help-instancename.

  Normally the association information is displayed as a tree but it may also be displayed as a table or as one of the
  object formats (ex. MOF) of all instances that are part of the shrub if one of the cim object formats is selected
  with the global output_format parameter.

  Results are formatted as defined by the output format global option.

Command Options:
  --ac, --assoc-class CLASSNAME   Filter the result set by association class name. Subclasses of the specified class
                                  also match.

  --rc, --result-class CLASSNAME  Filter the result set by result class name. Subclasses of the specified class also
                                  match.

  -r, --role PROPERTYNAME         Filter the result set by source end role name.
  --rr, --result-role PROPERTYNAME
                                  Filter the result set by far end role name.
  -k, --key KEYNAME=VALUE         Value for a key in keybinding of CIM instance name. May be specified multiple times.
                                  Allows defining keys without the issues of quotes. Default: No keybindings provided.

  -n, --namespace NAMESPACE       Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary                   Show only a summary (count) of the objects.
  -f, --fullpath                  Normally the instance paths in the tree views are by hiding some keys with ~ to make
                                  the tree simpler to read. This includes keys that have the same value for all
                                  instances and the "CreationClassName" key.  Whenthis option is used the full instance
                                  paths are displayed.

  --hi, --help-instancename       Show help message for specifying INSTANCENAME including use of the --key and
                                  --namespace options.

  -h, --help                      Show this help message.

pywbemcli qualifier –help

Help text for pywbemcli qualifier (see qualifier command group):

Usage: pywbemcli [GENERAL-OPTIONS] qualifier COMMAND [ARGS] [COMMAND-OPTIONS]

  Command group for CIM qualifier declarations.

  This command group defines commands to inspect CIM qualifier declarations in the WBEM Server.

  Creation, modification and deletion of qualifier declarations is not currently supported.

  In addition to the command-specific options shown in this help text, the general options (see 'pywbemcli --help')
  can also be specified before the 'qualifier' keyword.

Command Options:
  -h, --help  Show this help message.

Commands:
  get        Get a qualifier declaration.
  enumerate  List the qualifier declarations in a namespace.
pywbemcli qualifier enumerate –help

Help text for pywbemcli qualifier enumerate (see qualifier enumerate command):

Usage: pywbemcli [GENERAL-OPTIONS] qualifier enumerate [COMMAND-OPTIONS]

  List the qualifier declarations in a namespace.

  Enumerate the CIM qualifier declarations in the specified CIM namespace (--namespace option). If no namespace was
  specified, the default namespace of the connection is used.

  In the output, the qualifier declaration will formatted as defined by the --output-format general option.

Command Options:
  -n, --namespace NAMESPACE  Namespace to use for this command, instead of the default namespace of the connection.
  -s, --summary              Show only a summary (count) of the objects.
  -h, --help                 Show this help message.
pywbemcli qualifier get –help

Help text for pywbemcli qualifier get (see qualifier get command):

Usage: pywbemcli [GENERAL-OPTIONS] qualifier get QUALIFIERNAME [COMMAND-OPTIONS]

  Get a qualifier declaration.

  Get a CIM qualifier declaration (QUALIFIERNAME argument) in a CIM namespace (--namespace option). If no namespace
  was specified, the default namespace of the connection is used.

  In the output, the qualifier declaration will formatted as defined by the --output-format general option.

Command Options:
  -n, --namespace NAMESPACE  Namespace to use for this command, instead of the default namespace of the connection.
  -h, --help                 Show this help message.

pywbemcli repl –help

Help text for pywbemcli repl (see repl command):

Usage: pywbemcli [GENERAL-OPTIONS] repl

  Enter interactive mode (default).

  Enter the interactive mode where pywbemcli commands can be entered interactively. The prompt is changed to
  'pywbemcli>'.

  Command history is supported. The command history is stored in a file ~/.pywbemcli_history.

  Pywbemcli may be terminated from this mode by entering <CTRL-D>, :q, :quit, :exit

  In the repl mode, <CTRL-r> man be used to initiate an interactive search of the history file.

  Interactive mode also includes an autosuggest feature that makes suggestions from the command history as the command
  the user types in the command and options.

Command Options:
  -h, --help  Show this help message.

pywbemcli server –help

Help text for pywbemcli server (see server command group):

Usage: pywbemcli [GENERAL-OPTIONS] server COMMAND [ARGS] [COMMAND-OPTIONS]

  Command group for WBEM servers.

  This command group defines commands to inspect and manage core components of a WBEM server including server
  attributes, namespaces, the Interop namespace, management profiles, and access to profile central instances.

  In addition to the command-specific options shown in this help text, the general options (see 'pywbemcli --help')
  can also be specified before the 'server' keyword.

Command Options:
  -h, --help  Show this help message.

Commands:
  namespaces    List the namespaces of the server.
  interop       Get the Interop namespace of the server.
  brand         Get the brand of the server.
  info          Get information about the server.
  profiles      List management profiles advertized by the server.
  centralinsts  List central instances of mgmt profiles on the server.
pywbemcli server brand –help

Help text for pywbemcli server brand (see server brand command):

Usage: pywbemcli [GENERAL-OPTIONS] server brand [COMMAND-OPTIONS]

  Get the brand of the server.

  Brand information is defined by the server implementor and may or may not be available. Pywbem attempts to collect
  the brand information from multiple sources.

Command Options:
  -h, --help  Show this help message.
pywbemcli server centralinsts –help

Help text for pywbemcli server centralinsts (see server centralinsts command):

Usage: pywbemcli [GENERAL-OPTIONS] server centralinsts [COMMAND-OPTIONS]

  List central instances of mgmt profiles on the server.

  Retrieve the CIM instances that are central instances of the specified WBEM management profiles, and display these
  instances. By default, all management profiles advertized on the server are used. The profiles can be filtered by
  using the --organization and --profile options.

  The central instances are determined using all methodologies defined in DSP1033 V1.1 in the order of
  GetCentralInstances, central class, and scoping class methodology.

  Profiles that only use the scoping class methodology require the specification of the --central-class, --scoping-
  class, and --scoping-path options because additional information is needed to perform the scoping class methodology.

  The retrieved central instances are displayed along with the organization, name, and version of the profile they
  belong to, formatted as a table. The --output-format general option is ignored unless it specifies a table format.

Command Options:
  -o, --organization ORG-NAME     Filter by the defined organization. (ex. -o DMTF
  -p, --profile PROFILE-NAME      Filter by the profile name. (ex. -p Array
  --cc, --central-class CLASSNAME
                                  Optional. Required only if profiles supports only scopig methodology
  --sc, --scoping-class CLASSNAME
                                  Optional. Required only if profiles supports only scopig methodology
  --sp, --scoping-path CLASSLIST  Optional. Required only if profiles supports only scopig methodology. Multiples
                                  allowed

  --rd, --reference-direction [snia|dmtf]
                                  Navigation direction for association.  [default: dmtf]
  -h, --help                      Show this help message.
pywbemcli server info –help

Help text for pywbemcli server info (see server info command):

Usage: pywbemcli [GENERAL-OPTIONS] server info [COMMAND-OPTIONS]

  Get information about the server.

  The information includes CIM namespaces and server brand.

Command Options:
  -h, --help  Show this help message.
pywbemcli server interop –help

Help text for pywbemcli server interop (see server interop command):

Usage: pywbemcli [GENERAL-OPTIONS] server interop [COMMAND-OPTIONS]

  Get the Interop namespace of the server.

Command Options:
  -h, --help  Show this help message.
pywbemcli server namespaces –help

Help text for pywbemcli server namespaces (see server namespaces command):

Usage: pywbemcli [GENERAL-OPTIONS] server namespaces [COMMAND-OPTIONS]

  List the namespaces of the server.

Command Options:
  -h, --help  Show this help message.
pywbemcli server profiles –help

Help text for pywbemcli server profiles (see server profiles command):

Usage: pywbemcli [GENERAL-OPTIONS] server profiles [COMMAND-OPTIONS]

  List management profiles advertized by the server.

  Retrieve the CIM instances representing the WBEM management profiles advertized by the WBEM server, and display
  information about each profile. WBEM management profiles are defined by DMTF and SNIA and define the management
  functionality that is available.

  The retrieved profiles can be filtered using the --organization and --profile options.

  The output is formatted as a table showing the organization, name, and version for each profile. The --output-format
  option is ignored unless it specifies a table format.

Command Options:
  -o, --organization ORG-NAME  Filter by the defined organization. (ex. -o DMTF
  -p, --profile PROFILE-NAME   Filter by the profile name. (ex. -p Array
  -h, --help                   Show this help message.

Mock WBEM server support

Mock support overview

Pywbemcli supports mocking a WBEM server with the --mock-server general option. This allows executing pywbemcli against a mock WBEM server that is automatically created in pywbemcli, rather than a real WBEM server.

The --mock-server option is mutually exclusive with the --server general option and --name general option, since each defines a WBEM server.

The automatically created mock WBEM server has a in-memory repository for CIM objects (qualifier declarations, classes, and instances) and supports CIM namespaces. The operations performed against the mock WBEM server cause that mock repository to be inspected or manipulated accordingly.

The mock repository can be loaded with CIM objects from files specified as an argument to the --mock-server option. Each use of the option specifies one file path of such a file. The option may be used multiple times and each specified file is processed sequentially, in the sequence of the options on the command line.

The following types of files are supported for the --mock-server option:

  • MOF files: If the file extension is .mof, the file is considered a MOF file. Pywbemcli compiles the MOF in the file and adds the resulting CIM objects to the mock repository.

    The MOF file may define CIM qualifier declarations, CIM classes and CIM instances.

    At this point, these CIM objects can be added to only one CIM namespace in the repository of the mock WBEM server, namely the default namespace of the connection (see --default-namespace general option).

    If a CIM object already exists in the repository, it is updated accordingly.

  • Python files: If the file extension is .py, the file is considered a Python file. The file is executed using Python’s exec() (i.e. with module namespace __builtin__), and with the following Python global variables made available:

    • CONN (pywbem_mock.FakedWBEMConnection): This object provides a connection to the mock WBEM server. The methods of this object can be used to create and modify CIM objects in the mock repository.
    • SERVER (pywbem.WBEMServer): This object is layered on top of the CONN object and provides access to higher level features of the mock WBEM server, such as getting the Interop namespace, adding namespaces, or building more complex objects for the mock repository.
    • VERBOSE (bool): A flag that contains the value of the boolean --verbose general option of pywbemcli.

    The Python script can for example create Python objects of type CIMQualifierDeclaration, CIMClass and CIMInstance for representing CIM objects, and add them to the mock repository via calls to pywbem_mock.FakedWBEMConnection.add_cimobjects().

    The Python script can also extend the capabilities of the mock WBEM server by implementing callbacks via pywbem_mock.method_callback_interface(), for handling CIM method invocations against the mock WBEM server.

Pywbemcli logging (see --log general option) can be used together with the mock support. Since the mock support does not use HTTP(S), only the “api” component in the log configuration string will generate any log output.

Creating files for the mock repository

The following is an example MOF file (named tst_file.mof) that defines some CIM qualifier declarations, a single CIM class, and a single CIM instance of that class:

# Define some qualifiers

Qualifier Description : string = null,
    Scope(any),
    Flavor(EnableOverride, ToSubclass, Translatable);

Qualifier In : boolean = true,
    Scope(parameter),
    Flavor(DisableOverride, ToSubclass);

Qualifier Key : boolean = false,
    Scope(property, reference),
    Flavor(DisableOverride, ToSubclass);

Qualifier Out : boolean = false,
    Scope(parameter),
    Flavor(DisableOverride, ToSubclass);

# Define a class

   [Description ("Simple CIM Class")]
class CIM_Foo {

       [Key, Description("This is a key property")]
    string InstanceID;

       [Description("This is a uint32 property")]
    uint32 IntegerProp;

       [Description("Method with one output parameter")]
    uint32 TestMethod(
           [In (false), Out, Description("Output parameter")]
        string OutputParam;
    );
};

# Define an instance of the class

instance of CIM_Foo as $foo1 {
    InstanceID = "CIM_Foo1";
    IntegerProp = 1;
};

The pywbemcli command to use this MOF file for loading into a mock WBEM server, and then to enumerate its CIM class names is:

$ pywbemcli --mock-server tst_file.mof class enumerate --names-only
CIM_Foo

The following is Python code (in a file tst_file.py) that will add the same CIM objects as in the MOF file to the mock repository using add_cim_objects(). If the --verbose general option is set on the pywbemcli command line, the mock repository will be displayed:

#!/usr/bin/env python

from pywbem import CIMQualifierDeclaration, CIMQualifier, CIMClass, \
    CIMProperty, CIMMethod, CIMParameter, CIMInstance, CIMInstanceName, Uint32


def main():

    # Global variables made available by pywbemcli
    global CONN, VERBOSE

    # Define some qualifier declarations
    description_qd = CIMQualifierDeclaration(
        'Description', type='string', value=None,
        scopes=dict(ANY=True),
        overridable=True, tosubclass=True, translatable=True)
    in_qd = CIMQualifierDeclaration(
        'In', type='boolean', value=True,
        scopes=dict(PARAMETER=True),
        overridable=False, tosubclass=True)
    key_qd = CIMQualifierDeclaration(
        'Key', type='boolean', value=False,
        scopes=dict(PROPERTY=True, REFERENCE=True),
        overridable=False, tosubclass=True)
    out_qd = CIMQualifierDeclaration(
        'Out', type='boolean', value=False,
        scopes=dict(PARAMETER=True),
        overridable=False, tosubclass=True)

    # Define a class
    foo_cl = CIMClass(
        'CIM_Foo',
        qualifiers=[
            CIMQualifier('Description', 'Simple CIM Class'),
        ],
        properties=[
            CIMProperty(
                'InstanceID', type='string', value=None,
                qualifiers=[
                    CIMQualifier('Key', True),
                    CIMQualifier('Description', 'This is a key property'),
                ],
                class_origin='CIM_Foo', propagated=False),
            CIMProperty(
                'IntegerProp', type='uint32', value=None,
                qualifiers=[
                    CIMQualifier('Key', True),
                    CIMQualifier('Description', 'This is a uint32 property'),
                ],
                class_origin='CIM_Foo', propagated=False),
        ],
        methods=[
            CIMMethod(
                'TestMethod', return_type='uint32',
                qualifiers=[
                    CIMQualifier('Description',
                                 'Method with one output parameter'),
                ],
                parameters=[
                    CIMParameter(
                        'OutputParam', type='string',
                        qualifiers=[
                            CIMQualifier('In', False),
                            CIMQualifier('Out', True),
                            CIMQualifier('Description', 'Output parameter'),
                        ]),
                ],
                class_origin='CIM_Foo', propagated=False),
        ]
    )

    # Define an instance of the class.
    # Note: The mock repository does not add an instance path, so it must be
    # prepared upfront.
    foo1 = CIMInstance(
        'CIM_Foo',
        path=CIMInstanceName(
            'CIM_Foo', keybindings=dict(InstanceID="CIM_Foo1")),
        properties=[
            CIMProperty('InstanceID', value="CIM_Foo1"),
            CIMProperty('IntegerProp', value=Uint32(1)),
        ])

    # Add the CIM objects to the mock repository
    CONN.add_cimobjects([
        description_qd, in_qd, key_qd, out_qd,
        foo_cl,
        foo1,
    ])

    if VERBOSE:
        CONN.display_repository()


if __name__ == '__builtin__':
    main()

As you can see, adding CIM objects with a MOF file is more compact, but of course the Python script can contain logic, and it provides for implementing CIM method calls via callbacks.

It is possible to mix MOF files and Python scripts by specifying the --mock-server general option multiple times.

The pywbemcli command to use this Python file for loading into a mock WBEM server, and then to enumerate its CIM class names is:

$ pywbemcli --mock-server tst_file.py class enumerate --names-only
CIM_Foo

Pywbemtools development

This section only needs to be read by developers of the pywbemtools package. People that want to make a fix or develop some extension, and people that want to test the project are also considered developers for the purpose of this section.

Generally development users will install pywbemtools by cloning the pywbemtools GitHub package and using the Make utility to handle the installation of pywbemtools and its prerequisites. This provides the user with all of the source of pywbemtools and in addition, the test environment and the documentation files.

Repository

The repository for pywbemtools is on GitHub:

https://github.com/pywbem/pywbemtools

Setting up the development environment

It is recommended to use Linux as the development environment for pywbemtools. OS-X should work as well, but Windows requires a number of manual setup steps.

  1. Clone the Git repo of this project and switch to its working directory:

    $ git clone git@github.com:pywbem/pywbemtools.git
    $ cd pywbemtools
    
  2. It is recommended that you set up a virtual Python environment. Have the virtual Python environment active for all remaining steps.

  3. Install pywbemtools and its prerequisites for installing and running it as described in Installation. This will install Python packages into the active Python environment, and OS-level packages.

  4. Unix-like environments on Windows (such as CygWin, MinGW, Babun, or Gow) bring their own Python, so double check that the active Python environment is the one you want to use.

  5. Install the prerequisites for pywbemtools development. This will install Python packages into the active Python environment, and OS-level packages:

    $ make develop
    
  6. This project uses Make to do things in the currently active Python environment. The command:

    $ make
    

    displays a list of valid Make targets and a short description of what each target does.

Building the documentation

The ReadTheDocs (RTD) site is used to publish the documentation for the pywbemtools package at https://pywbemtools.readthedocs.io/

This page is automatically updated whenever the Git repo for this package changes the branch from which this documentation is built.

In order to build the documentation locally from the Git work directory, execute:

$ make builddoc

The top-level document to open with a web browser will be build_doc/html/docs/index.html.

Testing

All of the following make commands run the tests in the currently active Python environment. Depending on how the pywbemtools package is installed in that Python environment, either the pywbemtools directory in the main repository directory is used, or the installed pywbemtools package. The test case files and any utility functions they use are always used from the tests directory in the main repository directory.

The tests directory has the following subdirectory structure:

tests
 +-- unit                Unit tests
 |    +-- utils               Utility functions used by unit tests
 +-- manual              Manual tests
 +-- schema              The CIM schema MOF files used by some tests

There are multiple types of tests in pywbemtools:

  1. Unit tests and function tests

    Today, the unit tests and function tests are contained in the single directory unit.

    The distinction between unit tests and function tests as used in pywbemtools is that function tests exercise the entire pywbemcli client component or entire scripts using the pywbem_mock module and mock CIM model definitions to emulate a WBEM server, while unit tests exercise single modules without using access to a WBEM server.

    Generally, the function tests are organized by the command group so that for example the function tests for the class command group are in the file test_class_subcmd.py.

    Tests are run by executing:

    $ make test
    

    Test execution can be modified by a number of environment variables, as documented in the make help (execute make help).

  1. Manual tests

    There are several Python scripts and shell scripts that can be run manually. The results need to be validated manually.

    These scripts are in the directory:

    tests/manual/
    

    and are executed by simply invoking them from within the main directory of the repository, e.g.:

    tests/manual/test_pegasus.py
    

    Some of the scripts support a --help option that informs about their usage.

    Some tests depend on the existence of a DMTF Schema defining the classes and qualifier declarations in a particular release

  2. Running Tox

    To run the unit and function tests in all supported Python environments, the Tox tool can be used. It creates the necessary virtual Python environments and executes make test (i.e. the unit and function tests) in each of them.

    For running Tox, it does not matter which Python environment is currently active, as long as the Python tox package is installed in it:

    $ tox                              # Run tests on all supported Python versions
    $ tox -e py27                      # Run tests on Python 2.7
    

Disabling the spinner when debugging

Subcommands normally display a spinner (a character-based spinning wheel) while waiting for completion.

For debugging, it is useful to disable that spinner. This can be done by setting the PYWBEM_SPINNER environment variable to ‘false’, ‘0’, or the empty string. For example:

$ export PYWBEM_SPINNER=false

Contributing

Third party contributions to this project are welcome!

In order to contribute, create a Git pull request, considering this:

  • Test is required.
  • Each commit should only contain one “logical” change.
  • A “logical” change should be put into one commit, and not split over multiple commits.
  • Large new features should be split into stages.
  • The commit message should not only summarize what you have done, but explain why the change is useful.
  • The commit message must follow the format explained below.

What comprises a “logical” change is subject to sound judgement. Sometimes, it makes sense to produce a set of commits for a feature (even if not large). For example, a first commit may introduce a (presumably) compatible API change without exploitation of that feature. With only this commit applied, it should be demonstrable that everything is still working as before. The next commit may be the exploitation of the feature in other components.

For further discussion of good and bad practices regarding commits, see:

Core Development Team

Anyone can contribute to pywbemtools via pull requests as described in the previous section.

The pywbemtools project has a core development team that holds regular web conferences and that is using Slack for offline communication, on the Slack workspace: https://pywbem.slack.com.

The web conference and the Slack workspace are by invitation, and if you want to participate in the core team, please open a pywbem issue to let us know.

Appendix

This section contains information that is referenced from other sections, and that does not really need to be read in sequence.

Special terms

This documentation uses a few special terms to refer to Python types:

CIM-XML
The name of the protocol that pywbemcli uses to communicate with WBEM servers. CIM-XML is defined in DSP0200.
CIM object output formats
Pywbemcli output formats (specified with the --output-format general option) that format the resulting CIM objects or CIM object paths as MOF, CIM-XML, or using the pywbem repr or str formatting. See CIM object formats for details.
Table output formats
Pywbemcli output formats (specified with the --output-format general option) that format the result as a table. See Table formats for details.
Tree output format
A pywbemcli output format (specified with the --output-format general option) that formats the result as a tree using ASCII characters. See ASCII tree format for details.
INSTANCENAME

A CIM instance path in a format that is suitable as a command line argument or option value of pywbemcli. Several commands of the instance command group use INSTANCENAME as a command line argument.

The supported formats for INSTANCENAME are an untyped WBEM URI and the use of wildcard keys i.e. CLASSNAME.?, as detailed in Specifying the INSTANCENAME command argument.

Examples:

CIM_RegisteredProfile.InstanceID="acme:1"
CIM_System.CreationClassName="ACME_System",Name="MySystem"
CIM_System.?
connection id
A string that uniquely identifies each pywbem.WBEMConnection object created. The connection id is immutable and is accessible as pywbem.WBEMConnection.conn_id. It is included in each log record and may be used to relate pywbem log records to connections.
DeprecationWarning
A standard Python warning that indicates a deprecated functionality. See section Deprecation and compatibility policy and the standard Python module py:warnings for details.
CIM namespace
A CIM namespace (defined in DSP0004) provides a scope of uniqueness for CIM objects; specifically, the names of class objects and of qualifier type objects shall be unique in a namespace. The compound key of non-embedded instance objects shall also be unique across all non-embedded instances of the class (not including subclasses) within the namespace.
WBEM connection definitions file
connections file
A file maintained by pywbemcli and managed by the connection command group. The connections file defines a list of named WBEM connection definitions, each of which is either the set of parameters for connecting to a real WBEM server, or the set of files for creating a mock WBEM server. The file name of the connections file is pywbemcli_connection_definitions.yaml in the current directory. Multiple connections files may exist in different directories. This allows connection definitions to be predefined and pywbemcli commands executed against them using only the connection definition name (via the --name general option).
MOF
MOF (Managed Object Format) is the language used by the DMTF to describe in textual form CIM objects including CIM classes, CIM instances, etc. It is one of the output formats provided for the display of CIM objects in pywbemcli. See DMTF DSP0004 for more information on the MOF format.
WBEM management profile
management profile

WBEM management profiles define specific management functionality in terms of the CIM model and WBEM operations. The DMTF publishes management profiles in several areas and the SNIA within the SMI-S specification.

Management profiles are identified by organization, name and version. WBEM servers advertise the management profiles that are implemented by the server so that they can be discovered by WBEM clients to determine the management capabilities of the WBEM server. This includes providing the clients a programmatic access to the central instances of the management profile. For details, see Profile advertisement methodologies.

central instances
The CIM instances that act as an algorithmic focal point for accessing the management functionality provided by the implementation of a management profile on a WBEM server. The central instances typically represent the central managed resource in the management domain that is addressed by the management profile.
WBEM URI
WBEM URI is a standardized text form for CIM object paths and is defined in DSP0207. Pywbemcli uses the untyped WBEM URI format for instance names in the command line (i.e. INSTANCENAME).
REPL
Stands for “Read-Execute-Print-Loop” which is a term that denotes the pywbemcli shell interactive mode where multiple command groups and commands may be executed within the context of a connection defined by a set of general options.
Unix-style path name pattern
A pattern used in Unix environments for path names (file names and directory names). It is used by pywbemcli for example to expand class names in the class find command. No tilde expansion is done, but *, ?, and character ranges expressed with [] are supported. Example: CIM_*Device*.
source end role
The reference in an association class that is on the source side when performing an association traversal. The source side is where the traversal begins.
far end role
The reference in an association class that is on the far side when performing an association traversal. The far side is where the traversal ends.
traditional operations
The CIM-XML operations originally defined by the DMTF in (DSP0200) for requesting multiple instances from a WBEM server are EnumerateInstances, EnumerateInstanceNames, Referencess, ReferenceNames, Associators, AssociatorNames, and ExecQuery. These are monolithic operations and expect the WBEM server to prepare complete responses before returning any results. Because the response must be either contain all of the requested instances or an error response they causes issues with very large reponses. In later versions of (DSP0200), an alternative to the above operations named pull operations were added to improve memory and response efficiency.
backslash-escaped
The UNIX-like shells interpret single and double quotes in a certain way and remove them before passing the arguments on to the program invoked. Because the single and double quotes in INSTANCENAME need to be passed on to pywbemcli, they need to be protected from removal by the shell. This can be achieved by putting INSTANCENAME into single quotes if it only includes double quotes, or into double quotes if it only includes single quotes. If there is a mix of single and double quotes in INSTANCENAME, or if shell variables need to be expanded, this can be achieved by backslash-escaping any double quotes in INSTANCENAME, and putting it into double quotes.
default connection
A connection definition in the connections file that is used by pywbemcli as the current connection if pywbemcli is started without any connection definition (no --server general option, --mock-server general option, or --name general option) and the default connection is defined. A connection definition in the connections file becomes the default connection on pywbemcli startup if it is specified using the connection select command and the --default/-d command option is used.
current connection
The connection definition in pywbemcli that is currently active; it is the target connection for pywbemcli commands. The current connection is created on pywbemcli startup with the following options --server general option, --mock-server general option, or --name general option or if a default connection) has been defined. The current connection can be changed in the interactive mode with the connection select command.
CQL
CQL (CIM Query Language) is a query language defined by DMTF for use by query operations against WBEM servers. In operation parameters that define the use of a query language, it is specified with the string DMTF:QCL. CQL is described in DMTF standard DSP0202.

Profile advertisement methodologies

This section briefly explains the profile advertisement methodologies defined by DMTF. A full description can be found in DSP1033.

These methodologies describe how a client can discover the central instances of a management profile. Discovering the central instances through a management profile is the recommended approach for clients, over simply enumerating a CIM class of choice. The reason is that this approach enables clients to work seamlessly with different server implementations, even when they have implemented a different set of management profiles.

The DMTF defines three profile advertisement methodologies in DSP1033:

  • GetCentralInstances methodology (new in DSP1033 1.1)
  • Central class methodology
  • Scoping class methodology

At this point, the GetCentralInstances methodology has not widely been implemented, but pywbem supports it nevertheless.

All three profile advertisement methodologies start from the CIM_RegisteredProfile instance that identifies the management profile, by means of registered organization, registered name, and registered version.

It is important to understand that the CIM_RegisteredProfile instance not only identifies the management profile, but represents a particular use of the management profile within its scoping profiles. For an autonomous profile, there are no scoping profiles, so in that case, there is only one use of the autonomous profile in a server. However, component profiles do have scoping profiles, and it is well possible that a component profile is used multiple times in a server, in different scoping contexts. If that is the case, and if discovery of central instances using any of the profile advertisement methodologies is supposed to work, then each such use of the profile needs to have its own separate CIM_RegisteredProfile instance, because each such use of the profile will also have its own separate set of central instances.

Unfortunately, neither the DMTF standards nor the SMI-S standards are clear about that requirement, and so there are plenty of implementations that share a single CIM_RegisteredProfile instance identifying a particular component profile, for multiple distinct uses of the profile by its scoping profiles. In such a case, the profile advertisement methodologies will not be able to distinguish the distinct sets of central instances alone, and other means need to be used to distinguish them.

It is also important to understand that the choice which profile advertisement methodology to implement, is done by the WBEM server side. Therefore, a WBEM client such as pywbem needs to support all methodologies and needs to try them one by one until one succeeds. Pywbem tries the three methodologies in the order listed above.

In the GetCentralInstances methodology, the CIM_RegisteredProfile instance has a CIM method named GetCentralInstances that returns the instance paths of the central instances of the use of the profile.

In the central class methodology, the CIM_RegisteredProfile instance is associated directly with the set of central instances of the use of the profile, via a CIM_ElementConformsToProfile association.

In the scoping class methodology, the CIM_RegisteredProfile instance is not associated directly with the set of central instances of the use of the profile, but delegates that to its scoping profile. The client navigates up to the CIM_RegisteredProfile instance representing the (use of the) scoping profile, looks up its central instances, and from each of those, navigates down along the reversed scoping path to the central instances of the profile in question. The scoping path of a component profile describes the traversal across associations and ordinary classes from the central class to the scoping class of the profile. This profile advertisement methodology is obviously the most complex one of the three.

Pywbem encapsulates the complexity and choice of these methodologies into a single invocation of an easy-to use method pywbem.WBEMServer.get_central_instances().

Profile implementations in a WBEM server are not entirely free when making a choice of which methodology to implement:

  • Autonomous profiles in a WBEM server must implement the central-class methodology, and may in addition implement the GetCentralInstances methodology.

    Note that the scoping class methodology falls together with the central class methodology for autonomous profiles, because their scoping class is also their central class.

  • Component profiles in a WBEM server may implement the central class methodology and the GetCentralInstances methodology, and must support the scoping class methodology.

    Note that implementing the scoping class methodology in a WBEM server requires implementing the classes and associations of the scoping path, which are usually mandatory anyway. So while the scoping class methodology is more complex to use for clients than the central class methodology, it is easier to implement for servers.

Use of the scoping class methodology by a client requires knowing the central class, scoping class and scoping path defined by the component profile.

DSP1001 requires that conformant autonomous profiles specify a central class, and that conformant component profiles specify a central class, scoping class and a scoping path.

Older DMTF component profiles and older SNIA subprofiles do not always specify scoping class and scoping path. In such cases, the scoping class and scoping path can often be determined from the class diagram in the specification for the profile. Many times, CIM_System or CIM_ComputerSystem is the scoping class.

Change log

pywbemtools 0.7.3

Released: 2020-10-06

Bug fixes:

  • Docs/Test: Fixed failing install of Jinja2 on Python 3.4 by adding it to dev-requirements.txt and pinning it to <2.11 for Python 3.4.
  • Fixed incorrect property order in instance table output, where key properties were not ordered before non-key properties but ordered along with them. (see issue #782)
  • Test: Fixed qualifier definitions in qualifier_filter_model.mof to accomodate improved MOF compiler in pywbem 1.1.0. (see issue #788)

pywbemtools 0.7.2

Released: 2020-10-05

Bug fixes:

  • Test: Fixed attempt in test_class_cmds.py to invoke a non-static method on a class object. (see issue #707)
  • Test: Preventive fix for potential issue with virtualenv raising AttributeError during installtest on Python 3.4. (see issue #775)

pywbemtools 0.7.1

Released: 2020-07-31

Bug fixes:

  • Pinned prompt-toolkit to <3.0 on Python 3.8 on Windows to avoid WinError 995. (See issue #690)
  • Fixed exception when command entered in interactive mode, on Python 2. (See issue #224)
  • Test: Default connection file does not get restored in some cases during test. (See issue #680)

pywbemtools 0.7.0

This version contains all fixes up to pywbemtools 0.6.1.

Released: 2020-07-12

Incompatible changes:

  • The default location for the connections file (pywbemcli_connection_definitions.yaml) has been moved from the users current directory to the users home directory. A general option “connections_file” allows the user to set other directories and file names for this file. (See issue #596)

Deprecations:

  • Deprecated support for Python 2.7 and 3.4, because these Python versions have reached their end of life. A future version of pywbemtools will remove support for Python 2.7 and 3.4. (see issue #630).

Bug fixes:

  • Fixed incorrect connection list output in readme files (see issue #593).
  • Fixed yaml.RepresenterError during ‘connection save’ command. This introduced a dependency on the yamlloader package. (see issue #603).
  • Fixed possible issue where the connection test command would fail on a server that did not support class operations. (See issue #606)
  • Pinned version of colorama to <0.4.0 for Python <=3.4.
  • Adjusted to changes in the pywbem mock support for method providers, in the sample method provider simple_mock_invokemethod_pywbem_V1.py. (See issue #646)
  • Fix issue with MOF compile in pywbem_mock to account for changes to pywbem.FakedWBEMConnection in pywbem 1.0.0. Because the pywbem mocker stopped displaying compile error messages, this change modifies the code to display the compile errors as exceptions for pywbem 1.0 and use the original display for pre 1.0 pywbem version. With pywbem 1.0.0 it also outputs the compile error message and exception to stderr whereas before the compile error text was routed to stdout. (See issue #637)
  • Fixed an issue where displaying instances in a table format missed properties if the list of instances had different sets of properties. (See issue #650)

Enhancements:

  • Enabled installation using ‘setup.py install’ from unpacked source distribution archive, and added install tests for various installation methods including this one. (see issues #590, #591).
  • Enhance output formats to allow an additional format group TEXT with a single format text. This format outputs the command result as a text string to the console and is use for simple commands like server interop that only output one piece of data. (see issue #594)
  • Extended the command connection test so that it will also test for existence of the DMTF pull operations. It tests for all of the operations and reports success or failure on each operation.
  • Added value-mapped strings to properties in instance table output. For integer-typed (scalar or array) properties that have a ValueMap qualifier, the output of instances in table format now includes the value of the Values qualifier in parenthesis, in addition to the integer value. (See issue #634)
  • The order of properties when displaying instances in a table format is now predictable: First the sorted key properties, then the sorted non-key properties. (Part of fix for issue #650)
  • Modify connection file location functionality so that default is the users home directory but any other directory can be specified using the general option “connections_file” which has a corresponding environment variable. (See issue #596)

Cleanup

  • Adds command to test connection for existence of the pull operations (connection test-pull)
  • Refactored display_class_tree() and other functions in _displaytree.py and _cmd_class.py cmd_class_tree function to eliminate boundary conditions, and clarify code.
  • Extended parameter type testing in class PywbemServer so that all constructor parameters are value tested. This specifically fixes issue where we were depending on WBEMConnection to test types of ca_certs and invalid data types could get into the connections file. (See issue #663).
  • Added a function test test module test_misc_errors.py that tests for some common exceptions that apply to many commands (ex. connection error).

pywbemtools 0.6.0

This version contains all fixes up to pywbemtools 0.5.1.

Released: 2020-04-10

Bug fixes:

  • Fix issue with mixed old and new formats on click.echo statement. (See issue #419)
  • Fixed missing Python 3.7 in supported environments shown on Pypi. (See issue #416)
  • Fixed that the ‘class find’ command showed the –namespace option twice (see issue #417)
  • Added PyYAML>=5.1 as a prerequisite package for pywbemtools for installation. So far, it was pulled in indirectly via pywbem.
  • Fixed case sensitive matching of class names in instance modify by picking up the fix in pywbem 0.14.6. (See issue #429).
  • Fixed issue where extra diagnostic information about click was being displayed when the general option –verbose was defined.
  • Fixed issue with x509 parameter of WBEMConnection. (See issue #468)
  • Fixed issue with class find command not returning connection error when cannot connect to server.
  • Added documentation for the –version general option.
  • Increased pywbem minimum version to 0.16.0 to accomodate install issues on Python 3.4, and to pick up other fixes.
  • Test: Accomodated new formatting of error messages in Click 7.1.1, and excluded Click 7.1 due to bug.
  • Test: Fixed dependency to Python development packages on CygWin platform in Appveyor CI.
  • Pygments 2.4.0 and readme-renderer 25.0 have removed support for Python 3.4 and have therefore been pinned to below these versions on Python 3.4.
  • Fix bug where order of commands listed in help output was different for different versions of Python. (See issue #510)
  • Increased minimum version of pluggy package from 0.12.0 to 0.13.0 because it failed during loading of pytest plugins on Python 3.8. (See issue #494)
  • Test: Changed testcases that check the CIM-XML generated with output format ‘xml’ to tolerate the different order of XML attributes that happens on Python 3.8 (See issue #494)
  • Fixed several badges on the README page.
  • Remove use of pywbem internal functions from pywbemcli. This removes use of NocaseDict, _to_unicode, _ensure_unicode, _format from pywbemcli. (See issue #489)
  • Corrected issue with use-pull general option that causes issues with using the ‘either’ option with servers that do not have pull. (See issue #530)
  • Pinned dparse to <0.5.0 on Python 2.7 due to an issue.
  • Test: Fixed incorrect coverage reported at the end of the pytest run, by increasing the minimum version of the coverage package to 4.5.2. (See issue #547)
  • Test: Fixed bug with detection of invalid test validation values, and fixed testcases in turn (See issue #553).
  • Fixed issues in README and README_PYPI file (See issue #555)
  • Improvements and bug fixes in the way the INSTANCENAME parameter of pywbemcli commands is processed. (See issue #528)
  • Increased minimum versions of some packages used for development to address security issues reported by the pyup.io safety tool: twine, bleach, urllib3.

Enhancements:

  • Promoted development status of pywbemtools from Alpha to Beta. (See issue #476)
  • Add capability to reorder commands in the help for each group. The commands in all groups except for the top group (pywbemcli -h) are ordered in the help list by their order in their source file. The display of commands in the top level group is alphabetical except that connection, help, and repl are reordered to the bottom of the list. (See issue #466)
  • Define alternatives for creating INSTANCENAME input parameter since the original form using, WBEMURI is error prone with quote marks. (see issue #390)
  • Add prompt-toolkit auto-suggest. This extends the command completion capability in the repl mode (interactive mode) to make suggestions on command line input based on the history file. Usually auto-suggest completion will be shown as gray text behind the current input. Auto-suggest is not available in command line mode.
  • Add ability to filter results of ‘class enumerate’, ‘class find’, and ‘instance count’ commands for selected class qualifiers. This ability is based on 3 new options for each of the above commands ‘–association’, ‘–indication’, and ‘–experimental’ each of which has a corresponding ‘no-…’. The user can filter to find classes with combinations of these options returning only classes that meet the option criteria. Thus, ‘–association’ returns classes that are associations and ‘–no-association’ returns only classes that are not associations. See issue #447
  • Added support for disabling the spinner that is displayed by default during any ongoing activities, by setting the env var PYWBEM_SPINNER to ‘false’, ‘0’, or the empty string. This is useful when debugging. See issue #465.
  • Modified the response handling on commands that may return nothing with successful response to display a message if the general option –verbose is defined and display nothing if –verbose not set. This includes class/instance delete, instance modify and the commands that display cim objects. (See issue #123)
  • Changed the –ca-certs general option to support the changes as of pywbem version 1.0.0 (new values ‘system’ and ‘certifi’, and default changed from a fixed set of directories to ‘certifi’). The pywbem version is determined at run time and pywbem versions before 1.0.0 are still supported.
  • Test: Improved assertion messages in tests.
  • Output of “pywbemcli server profiles” command is now reliably sorted by version in addition to org and name. (See issue #500)
  • Added support for a new –pdb general option and corresponding PYWBEMCLI_PDB environment variable that causes the pywbemcli command to come up with the pdb debugger before invoking the specified command. This is a debug feature that is expected to be used mainly by the developers of pywbemcli. (See issue #505)
  • Test: Added support for entering the pdb debugger from specific unit testcases by setting the condition parameter of the testcase to the string ‘pdb’. This causes pywbemcli to be invoked with the new –pdb option for that testcase. (See issue #505)
  • Removed usage of the “pbr” package. It was used for automatic versioning of the pywbemtools package, but it had too many drawbacks for that small benefit (See issue #178):
    • Getting the minor version increased in a development version (instead of the patch version) by means of markers in the commit message never worked.
    • The package needed to be tagged twice during the release process.
    • If the last tag was too far in the past of the commit history, the shallow git checkout used by Travis failed and its depth needed to be adjusted. At some point this defeats the purpose of a shallow checkout.
  • Test: Added support for testing on Python 3.8 in Travis, Appveyor and Tox. (See issue #494)
  • Added support for adjusting the width of any help output to the terminal width. The width can be set using the PYWBEMCLI_TERMWIDTH env var. (See issues #518 and #542)
  • Docs: Increased the width of the help text to 120 (See issue #548).
  • Modified the help usage to better reflect the required and optional components of the command line. This includes showing the location in the cmd line for general options where before it was called [COMMAND-OPTIONS] and showing the positioning of both arguments and command arguments. (See issue #446)
  • Increased minimum version of pywbem to 0.17.0 (See issue #571)
  • Add option –full to connection list to create both a brief table output that only has 3 columns (name, server, mock-server) as default but when the option is set all of the columns currently in the report. We did this because it appears that the most frequent use of this command is to just get the name of the various servers defined within an 80 column display. This also now shows empty columns where the original report hid any columns that were empty. (See issue #556)

Cleanup:

  • Test: Enabled Python warning suppression for PendingDeprecationWarning and ResourceWarning (py3 only), and fixed incorrect make variable for that.
  • Test: Removed testfixtures from minimum constraints file, as it is not used.
  • Test: Increased minimum version of pytest from 3.3.0 to 4.3.1 because it fixed an issue that surfaced with pywbem minimum package levels on Python 3.7.
  • Code: refactor code to use only the .format formatter and remove all use of the % formatter.
  • Test: Added missing indirectly referenced prerequisite packages to minimum-constraints.txt, for a defined package level when testing with PACKAGE_LEVEL=minimum.
  • Clean up test mock files by merging mock_simple_model_ext.mof into mock_simple_model.mof
  • Changed some tests to account for behavior difference with pywbem 0.15.0 references and associations with invalid class, role.
  • Changed minimun version of pywbem to 0.15.0 because of test differences that resulted from differences between pywbem 0.14.6 and 0.15.0. The differences are in pywbem_mock where the code was changed to return errors for invalid classnames and roles in association and reference operations where it previously return empty, ignoring the invalid classname.
  • Added tests of all command groups and commands for server connection error.
  • Removed a circumvention for a pywbem bug related to colons in WBEM URIs that was fixed in pywbem 0.13.0. (See issue #131)
  • Added the general option –use-pull to the the PywbemServer() class so that it is persisted in the connection file and to the display of connection information (connection show and connection list). This means that –use-pull can now be set for a particular server permanently.(See issues #529 and #534).
  • Added table formatted output for connection show and removed original free-form output format. (See issue #572)
  • Added documentation on incremental search option to search the command history file in interactive mode. (See issue #595)
  • Added documentation index entries for commands, command groups, etc. (see issue #598)

pywbemtools 0.5.0

Released: 2019-09-29

This is the initial release of pywbemtools.