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Exercise - Locate commands

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In this unit, you use the Azure Cloud Shell on the right-hand side as your Linux terminal. You can access Cloud Shell through the Azure portal or the Cloud Shell sign-in. You don't have to install anything on your PC or laptop to use it.

Here, you run commands that help you learn more about PowerShell. PowerShell isn't something you learn overnight; it's learned command by command. You can speed up your learning by effectively using the core cmdlets.

Locate a command

Locate commands by running the Get-Command cmdlet. This cmdlet helps you search all of the cmdlets installed on your system. Use flags to narrow down your search results to just the cmdlets that fit your scenario.

In this scenario, you're looking for a cmdlet that can help you work with files.

1. Run the command Get-Command with the flag -Noun. Specify File* to find anything related to files.

    Get-Command -Noun File*
   

   The response shows something similar to the following text:

   CommandType     Name                                               Version    Source
   -----------     ----                                               -------    ------
   Cmdlet          Get-FileHash                                       7.0.0.0    Microsoft.PowerShell.Utility
   Cmdlet          Out-File                                           7.0.0.0    Microsoft.PowerShell.Utility
   Cmdlet          Unblock-File                                       7.0.0.0    Microsoft.PowerShell.Utility
   

   The cmdlets Get-FileHash, Out-File, and Unblock-File all match your query. Now, you have a manageable response. To further filter the response, add the -Verb parameter to your query.

2. Run Get-Command. Specify the flags -Verb and -Noun.

   Get-Command -Verb Get -Noun File*
   

   The result is similar to the following output:

   CommandType     Name                                               Version    Source
   -----------     ----                                               -------    ------
   Cmdlet          Get-FileHash                                       7.0.0.0    Microsoft.PowerShell.Utility
   

   This time, only one record matches your search, because you specified both the -Noun parameter and the -Verb parameter.

Because the domain you work in is file management, you specified File as the noun. If you know what you want to do within that domain, you can specify -Verb parameters. By using one or possibly two parameters, you can quickly find the cmdlet you need.

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