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Master PowerShell like a Pro: Get-Module and Get-Command Essentials

Mastering PowerShell Modules and Commands: Your Guide to

Get-Module and

Get-Command

PowerShell is a powerful scripting environment that has made system administration and automation easier and more efficient. With its versatile nature, by default, PowerShell comes with a set of core modules and commands that can be used to accomplish common tasks.

However, PowerShell has an extensive library of third-party modules and commands that you can use to accelerate your work, creating a customized and reliable pipeline. In this article, well be looking at some vital cmdlets, namely

Get-Module and

Get-Command, which can come in handy while using PowerShell modules and commands.

Get-Module cmdlet and PowerShell Modules

PowerShells magic bullet lies in its rich library of modules that can be loaded and unloaded on-demand, enabling you to perform a wide array of tasks. A module is a collection of functions, cmdlets, providers, and an associated help file.

A cmdlet is a small piece of code that performs a task programmatically, while a provider is a component that enables access to data stores, such as the registry and file system. The

Get-Module cmdlet enables you to work with these modules programmatically.

Getting a List of All Available PowerShell Modules

Before you can use any PowerShell module, you must know whats available on your system. Fortunately, Microsoft designed PowerShell to be user-friendly, and the

Get-Module cmdlet ensures that this is the case.

When PowerShell begins, a session is created and a default set of modules are imported. To get a list of the currently imported modules, enter the following line of code in the PowerShell console:

Get-Module

This cmdlet returns a list of all modules that are currently imported, including their names, version numbers, and whether or not they are built into the PowerShell environment. If you would like to know what modules are available on your system, including those that are not currently imported, use the following line of code:

Get-Module ListAvailable

This cmdlet returns a list of all modules that are available on the system, including their names, version numbers, descriptions, and other details. You can use this information to decide which modules you need and import them when necessary.

Viewing the PowerShell Modules Location Path

When a PowerShell session begins, it searches certain locations for available modules. These locations are defined in the PSModulePath environment variable.

By default, this variable contains a list of directories where PowerShell looks for modules. To view the PSModulePath environment variable, type the following:

$env:PSModulePath

This returns a list of paths separated by semicolons (;).

The first path in the list is usually the directory where PowerShell is installed, followed by several other directories that contain modules provided by Microsoft. As an advanced user, you can add custom directories to this list to ensure that PowerShell can find the modules you need.

Alternatively, you can create a new environment variable for your custom modules path and add it to your `$env:PSModulePath`.

Get-Command cmdlet and PowerShell Commands

Microsoft PowerShell cmdlets are powerful tools that allow you to accomplish tasks programmatically. Using

Get-Command cmdlet, it is easy to identify the commands available within PowerShell.

Getting a List of All Installed Commands in PowerShell

For a beginner, it might be difficult to remember each command. If you want to see the full list of commands available on your system, you can use the

Get-Command cmdlet.

Typing the following command returns a list of all installed commands:

Get-Command

This returns a full list of all commands, including functions, cmdlets, and scripts. The output of this cmdlet can be quite long and hard to read.

In such cases, you might want to use the Out-Gridview cmdlet, which opens a graphical representation of the cmdlets output. This enables you to sort and filter the results visually.

Specifying the Types of Commands to Retrieve

If youre searching for a specific type of cmdlet or want to list only custom commands, you can specify the type of command youre looking for. PowerShell has four types of commands: Alias, Function, Script, and Cmdlet.

To retrieve all functions available on your system, for instance, execute the following command:

Get-Command Type Function

This cmdlet returns only a list of functions and excludes the other types of commands. You can also specify multiple types of commands by adding their names to the Type parameter:

Get-Command Type Function, Alias

This returns a list of both functions and aliases. In conclusion, the

Get-Module and

Get-Command cmdlets are very useful.

Weve looked at ways to view available PowerShell modules and how to identify installed commands. Weve also seen how to retrieve just the type of commands you need.

The next time you work in PowerShell environment, make use of these cmdlets to improve efficiency and productivity. In summary, the

Get-Module and

Get-Command cmdlets are powerful tools that enable you to work more efficiently and effectively in the PowerShell environment.

With

Get-Module, users can view available PowerShell modules and add custom directories to the module path. With

Get-Command, you can identify and specify types of installed commands.

When used together, these cmdlets can increase productivity and performance, making complex tasks simpler and faster. By taking advantage of these cmdlets, users can master PowerShell commands, modules and refine their automation skills.

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