Remove-Variable - Powershell 1.0 CmdLet
Microsoft Windows PowerShell is a command-line shell and scripting tool based on the Microsoft .NET Framework. It is designed for system administrators, engineers and developers to control and automate the administration of Windows and applications.
More than hundred command-line tools (so called "cmdlets") can be used to perform system administration tasks and Windows Management Instrumentation (WMI). These cmdlets are easy to use, with standard naming conventions and common parameters, and standard tools for piping, sorting, filtering, and formatting data and objects.
Remove-Variable
Description Remove a variable and its value Usage Options -Name The name of the variable(s) to be removed. -include string Delete only the specified items. Wildcards are permitted. -exclude string Omit the specified items. Wildcards are permitted. -valueOnly Get only the value of the variable. -scope string The scope in which this alias is valid. Valid values are "Global", "Local", "Private" or "Script", or 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. For more, type "get-help about_scope". -force Override restrictions that prevent the command from succeeding, apart from security settings. e.g. -force will override a files read-only attribute, but will not change file permissions. -whatIf Describe what would happen if you executed the command without actually executing the command. -confirm Prompt for confirmation before executing the command. CommonParameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutVariable. Example(s) Remove an existing variable $myvar: PS C:\>remove-variable myvar