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Showing content from https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/set-alias below:

Set-Alias (Microsoft.PowerShell.Utility) - PowerShell | Microsoft Learn

Creates or changes an alias for a cmdlet or other command in the current PowerShell session.

Set-Alias
    [-Name] <string>
    [-Value] <string>
    [-Description <string>]
    [-Option <ScopedItemOptions>]
    [-PassThru]
    [-Scope <string>]
    [-Force]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

The Set-Alias cmdlet creates or changes an alias for a cmdlet or a command, such as a function, script, file, or other executable. An alias is an alternate name that refers to a cmdlet or command. For example, sal is the alias for the Set-Alias cmdlet. For more information, see about_Aliases.

A cmdlet can have multiple aliases, but an alias can only be associated with one cmdlet. You can use Set-Alias to reassign an existing alias to another cmdlet, or change an alias's properties, such as the description.

An alias that's created or changed by Set-Alias isn't permanent and is only available during the current PowerShell session. When the PowerShell session is closed, the alias is removed.

This command creates an alias to a cmdlet in the current PowerShell session.

PS> Set-Alias -Name list -Value Get-ChildItem

PS> Get-Alias -Name list

CommandType     Name
-----------     ----
Alias           list -> Get-ChildItem

The Set-Alias cmdlet creates an alias in the current PowerShell session. The Name parameter specifies the alias's name, list. The Value parameter specifies the cmdlet that the alias runs.

To run the alias, type list on the PowerShell command line.

This command reassigns an existing alias to run a different cmdlet.

PS> Get-Alias -Name list

CommandType     Name
-----------     ----
Alias           list -> Get-ChildItem

PS> Set-Alias -Name list -Value Get-Location

PS> Get-Alias -Name list

CommandType     Name
-----------     ----
Alias           list -> Get-Location

The Get-Alias cmdlet uses the Name parameter to display the list alias. The list alias is associated with the Get-ChildItem cmdlet. When the list alias is run, the items in the current directory are displayed.

The Set-Alias cmdlet uses the Name parameter to specify the list alias. The Value parameter associates the alias to the Get-Location cmdlet.

The Get-Alias cmdlet uses the Name parameter to display the list alias. The list alias is associated with the Get-Location cmdlet. When the list alias is run, the current directory's location is displayed.

This command creates a read-only alias. The read-only option prevents unintended changes to an alias. To change or delete a read-only alias, use the Force parameter.

Set-Alias -Name loc -Value Get-Location -Option ReadOnly -PassThru |
    Format-List -Property *

DisplayName         : loc -> Get-Location
Definition          : Get-Location
Options             : ReadOnly
Description         :
Name                : loc
CommandType         : Alias

$Parameters = @{
    Name        =  'loc'
    Value       =  (Get-Location)
    Option      =  'ReadOnly'
    Description =  'Displays the current directory'
    Force       = $true
    PassThru    = $true
}
Set-Alias @Parameters | Format-List -Property *

DisplayName         : loc -> Get-Location
Definition          : Get-Location
Options             : ReadOnly
Description         : Displays the current directory
Name                : loc
CommandType         : Alias

The Set-Alias cmdlet creates an alias in the current PowerShell session. The Name parameter specifies the alias's name, loc. The Value parameter specifies the Get-Location cmdlet that the alias runs. The Option parameter specifies the ReadOnly value. The PassThru parameter represents the alias object and sends the object down the pipeline to the Format-List cmdlet. Format-List uses the Property parameter with an asterisk (*) so that every property is displayed. The example output shows a partial list of those properties.

The loc alias is changed with the addition of two parameters. Description adds text to explain the alias's purpose. The Force parameter is needed because the loc alias is read-only. If the Force parameter isn't used, the change fails.

This example creates an alias to an executable file on the local computer.

PS> Set-Alias -Name np -Value C:\Windows\notepad.exe

PS> Get-Alias -Name np

CommandType     Name
-----------     ----
Alias           np -> notepad.exe

The Set-Alias cmdlet creates an alias in the current PowerShell session. The Name parameter specifies the alias's name, np. The Value parameter specifies the path and application name C:\Windows\notepad.exe. The Get-Alias cmdlet uses the Name parameter to show that the np alias is associated with notepad.exe.

To run the alias, type np on the PowerShell command line to open notepad.exe.

This example shows how to assign an alias to a command with parameters.

You can create an alias for a cmdlet, such as Set-Location. You can't create an alias for a command with parameters and values, such as Set-Location -Path C:\Windows\System32. To create an alias for a command, create a function that includes the command, and then create an alias to the function. For more information, see about_Functions.

function CD32 {Set-Location -Path C:\Windows\System32}

Set-Alias -Name Go -Value CD32

A function named CD32 is created. The function uses the Set-Location cmdlet with the Path parameter to specify the directory, C:\Windows\System32.

The Set-Alias cmdlet creates an alias to the function in the current PowerShell session. The Name parameter specifies the alias's name, Go. The Value parameter specifies the function's name, CD32.

To run the alias, type Go on the PowerShell command line. The CD32 function runs and changes to the directory C:\Windows\System32.

This example shows how to assign multiple options using the Option parameter.

Continuing from the previous example, set the alias Go as ReadOnly and Private.

Set-Alias -Name Go -Option ReadOnly, Private

The alias Go should already exist. After running the command, the alias can't be changed without using the Force parameter and is only available in the current scope.

Prompts you for confirmation before running the cmdlet.

Specifies a description of the alias. You can type any string. If the description includes spaces, enclose it in single quotation marks.

Use the Force parameter to change or delete an alias that has the Option parameter set to ReadOnly.

The Force parameter can't change or delete an alias with the Option parameter set to Constant.

Specifies the name of a new alias. An alias name can contain alphanumeric characters and hyphens. Alias names can't be numeric, such as 123.

Sets the Option property value of the alias. Values such as ReadOnly and Constant protect an alias from unintended changes. To see the Option property of all aliases in the session, type Get-Alias | Format-Table -Property Name, Options -AutoSize.

The acceptable values for this parameter are as follows:

• AllScope - The alias is copied to any new scopes that are created.
• Constant - Can't be changed or deleted.
• None - Sets no options and is the default.
• Private - The alias is available only in the current scope.
• ReadOnly - Can't be changed or deleted unless the Force parameter is used.
• Unspecified

These values are defined as a flag-based enumeration. You can combine multiple values together to set multiple flags using this parameter. The values can be passed to the Option parameter as an array of values or as a comma-separated string of those values. The cmdlet combines the values using a binary-OR operation. Passing values as an array is the simplest option and also allows you to use tab-completion on the values.

Returns an object that represents the alias. Use a format cmdlet such as Format-List to display the object. By default, Set-Alias doesn't generate any output.

Specifies the scope this alias is valid in. The default value is Local. For more information, see about_Scopes.

The acceptable values are as follows:

• Global
• Local
• Private
• Numbered scopes
• Script

Specifies the name of the cmdlet or command that the alias runs. The Value parameter is the alias's Definition property.

Shows what would happen if the cmdlet runs. The cmdlet isn't run.

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.

You can't pipe objects to this cmdlet.

By default, this cmdlet returns no output.

When you use the PassThru parameter, this cmdlet returns an AliasInfo object representing the alias.

PowerShell includes the following aliases for Set-Alias:

• All platforms:
  • sal

PowerShell includes built-in aliases that are available in each PowerShell session. The Get-Alias cmdlet displays the aliases available in a PowerShell session.

To create an alias, use the cmdlets Set-Alias or New-Alias. In PowerShell 6, to delete an alias, use the Remove-Alias cmdlet. Remove-Item is accepted for backwards compatibility such as for scripts created with prior versions of PowerShell. Use a command such as Remove-Item -Path Alias:AliasName.

To create an alias that's available in each PowerShell session, add it to your PowerShell profile. For more information, see about_Profiles.

An alias can be saved and reused in another PowerShell session by doing an export and import. To save an alias to a file, use Export-Alias. To add a saved alias to a new PowerShell session, use Import-Alias.

• about_Aliases
• about_Functions
• about_Profiles
• about_Scopes
• Export-Alias
• Get-Alias
• Import-Alias
• New-Alias
• Remove-Alias
• Remove-Item

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