Variable commands

A number of commands are available to interact with variables:

• Clear-Variable
• Get-Variable
• New-Variable
• Remove-Variable
• Set-Variable

Clear-Variable

Clear-Variable removes the value from any existing variable. Clear-Variable does not remove the variable itself. For example, the following example calls Write-Host twice: the first time it writes the variable value; the second time it does not write anything:

PS> $temporaryValue = "Some-Value"
Write-Host $temporaryValue -ForegroundColor Green

Some-Value

PS> Clear-Variable temporaryValue
Write-Host $temporaryValue -ForegroundColor Green

Get-Variable

Get-Variable provides access to any variable that has been created in the current session as well as the default (automatic) variables created by PowerShell. For further information on automatic variables, see about_Automatic_Variables (Get-Help about_Automatic_Variables).

When using the *-Variable commands, the $ preceding the variable name is not considered part of the name.

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