New-Alias

Create a new alias.

Syntax
      New-Alias [ [-name] string[] ]  [-value] string [-description string] 
         [-option option] [-passThru] [-scope string] [-force] 
             [-whatIf] [-confirm] [CommonParameters]

Key
   -name string[]
       The alias to create, the first character cannot be a number.

   -value string
       The name of the cmdlet or command element that is being aliased.

   -description string
       A description for the alias.

   -option option
       The valid options are: 
         None    : Set no options. (default) 
         ReadOnly: The alias cannot be changed unless you use -Force. 
         Constant: The alias cannot be changed, even by using -Force. 
         Private : The alias is available only within the scope specified by -Scope. 
                   It is invisible in all other scopes.

   -passThru 
       Pass the object created by this cmdlet through the pipeline. 

   -scope string
       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, type "get-help about_scope".

   -force
       If set, act like set-alias if the alias name already exists.

   -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, -WarningAction, -WarningVariable,
       -OutBuffer -OutVariable.

Aliases created with New-Alias are not saved after you exit the session or close PowerShell. You can use Export-Alias and Import-Alias to save and restore alias information from a file.

You can assign an alias to a cmdlet, script, function, or executable file, but you cannot assign an alias to a command and its parameters. For example, you can assign an alias to Get-Eventlog, but you cannot assign an alias to Get-Eventlog -logname security. However, you can create a function that includes such a command.

Examples

Create an alias named 'list' to represent Get-ChildItem:

PS C:\> new-alias list get-childitem

Create a ReadOnly alias named 'w' to represent Get-WMIObject:

PS C:\> new-alias -name w -value get-wmiobject -description "quick wmi alias" -option ReadOnly

Uses Get-Alias to display all the information about the alias called 'List':

PS C:\> get-alias -name list | format-list *

Associate the alias, "np", with the executable file for Notepad:

PS C:\>Set-Alias np c:\windows\notepad.exe

Create a function that will set location as C:\windows\system32 and then assign the alias "cd32", to the new function:

PS C:\> function func32 {set-location c:\windows\system32}
PS C:\> set-alias cd32 func32

“If there is a sin against life, it consists perhaps not so much in despairing of life as in hoping for another life and in eluding the implacable grandeur of this life” ~ Albert Camus

Related:

Export-Alias epal Export an alias list to a file
import-Alias - Import an alias list from a file
Get-Alias - Return alias names for Cmdlets
Set-Alias - Map an alias to a Cmdlet
class: System.Management.Automation.AliasInfo
Equivalent bash command: alias - Create an alias