To rename a variable in PowerShell, which command is appropriate?

To rename a variable in PowerShell, which command is appropriate?

• A. Rename-Item -Path Env:\MyVariable -NewName MyRenamedVar
• B. Rename-Variable -Name MyVariable -NewName MyRenamedVar
• C. Set-Variable -Name MyVariable -Value MyRenamedVar
• D. Move-Item -Path Env:\MyVariable -NewName MyRenamedVar

Answer: (B)

Renaming a variable in PowerShell is done with the Rename-Variable cmdlet. This cmdlet changes the identifier of an existing variable in the current session, preserving its value under the new name. Using the correct syntax, you specify the current variable name and the desired new name: Rename-Variable -Name MyVariable -NewName MyRenamedVar. After this runs, the old name is no longer available, and the value is now accessible as $MyRenamedVar. Other options don’t perform a rename of a variable. Rename-Item operates on items like files, folders, or provider items, not variables. Set-Variable would set or create a variable’s value but wouldn’t rename the existing variable name. Move-Item moves items rather than renaming a variable, and attempting to reference Env:\MyVariable would relate to an environment variable, which isn’t renamed with Rename-Item.

Renaming a variable in PowerShell is done with the Rename-Variable cmdlet. This cmdlet changes the identifier of an existing variable in the current session, preserving its value under the new name. Using the correct syntax, you specify the current variable name and the desired new name: Rename-Variable -Name MyVariable -NewName MyRenamedVar. After this runs, the old name is no longer available, and the value is now accessible as $MyRenamedVar.

Other options don’t perform a rename of a variable. Rename-Item operates on items like files, folders, or provider items, not variables. Set-Variable would set or create a variable’s value but wouldn’t rename the existing variable name. Move-Item moves items rather than renaming a variable, and attempting to reference Env:\MyVariable would relate to an environment variable, which isn’t renamed with Rename-Item.