Remove-Variable
Syntax
Default (Default)
Remove-Variable
[-Name] <String[]>
[-Include <String[]>]
[-Exclude <String[]>]
[-Force]
[-Scope <String>]
[-WhatIf]
[-Confirm]
[<CommonParameters>]
Description
The Remove-Variable cmdlet deletes a variable and its value from the scope in which it is defined, such as the current session.
Examples
Example 1
PS C:\> remove-variable Smp
This command deletes the $Smp variable.
Parameters
-Confirm
Prompts you for confirmation before running the cmdlet.
Parameter properties
| Type: | SwitchParameter |
| Default value: | False |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | cf |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Exclude
Omits the specified items. The value of this parameter qualifies the Name parameter. Enter a name element or pattern, such as "s*". Wildcards are permitted.
Parameter properties
| Type: | String[] |
| Default value: | None |
| Supports wildcards: | True |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Force
Allows the cmdlet to remove a variable even if it is read-only. Even using the Force parameter, the cmdlet cannot remove a constant.
Parameter properties
| Type: | SwitchParameter |
| Default value: | False |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Include
Deletes only the specified items. The value of this parameter qualifies the Name parameter. Enter a name element or pattern, such as "s*". Wildcards are permitted.
Parameter properties
| Type: | String[] |
| Default value: | None |
| Supports wildcards: | True |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Name
Specifies the name of the variable to be removed. The parameter name ("Name") is optional.
Parameter properties
| Type: | String[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | 1 |
| Mandatory: | True |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
-Scope
Specifies the scope in which this alias is valid. Valid values are "Global", "Local", 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 information, see about_Scopes.
Parameter properties
| Type: | String |
| Default value: | Local |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Parameter properties
| Type: | SwitchParameter |
| Default value: | False |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | wi |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.
Inputs
PSVariable
You can pipe a variable object to Remove-Variable.
Outputs
None
This cmdlet does not return any output.
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 RemoveVariable by its built-in alias, "rv". For more information, see about_Aliases.