Remove-Variable

Deletes a variable and its value.
Remove-Variable [-Name*] <String[]> [-Exclude [<String[]>]] [-Force] [-Include [<String[]>]] [-Scope [<String>]][-Confirm] [-WhatIf] [<CommonParameters>]

The Remove-Variable cmdlet deletes a variable and its value from the scope in which it is defined, such as the current session. You cannot use this cmdlet to delete variables that are set as constants or those that are owned by the system.

Parameters
-Exclude [<String[]>]

Specifies an array of items that this cmdlet omits from the operation. The value of this parameter qualifies the Name parameter. Enter a name element or pattern, such as “s*”. Wildcards are permitted.

-Force [<SwitchParameter>]

Indicates that the cmdlet removes a variable even if it is read-only. Even using the Force parameter, the cmdlet cannot remove a constant.

-Include [<String[]>]

Specifies an array of items that this cmdlet deletes in the operation. The value of this parameter qualifies the Name parameter. Enter a name element or pattern, such as s*. Wildcards are permitted.

-Name <String[]>

Specifies the name of the variable to be removed. The parameter name (Name) is optional.

-Scope [<String>]

Gets only the variables in the specified scope. The acceptable values for this parameter are:

— Global– Local– Script– A number relative to the current scope (0 through the number of scopes, where 0 is the current scope and 1 is its parent)

Local is the default.

-Confirm [<SwitchParameter>]

  • Default value is false

Prompts you for confirmation before running the cmdlet.Prompts you for confirmation before running the cmdlet.

-WhatIf [<SwitchParameter>]

  • Default value is false

Shows what would happen if the cmdlet runs. The cmdlet is not run.Shows what would happen if the cmdlet runs. The cmdlet is not run.

<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,ErrorAction, ErrorVariable, WarningAction, WarningVariable,OutBuffer, PipelineVariable, and OutVariable.

Inputs

System.Management.Automation.PSVariable

You can pipe a variable object to Remove-Variable.

Outputs

None

This cmdlet does not return any output.

Examples
  1. Remove a variable:
    PS C:> Remove-Variable Smp
    

    This command deletes the $Smp variable.

Additional Notes
 Changes affect only the current scope, such as a session. To delete a variable from all sessions, add a 
 Remove-Variable command to your Windows PowerShell profile.

 You can also refer to Remove-Variable by its built-in alias, rv. For more information, see about_Aliases.
Related Links

Clear-Variable
Get-Variable
New-Variable
Set-Variable