What is the PowerShell equivalent of ksh's `whence -v`?

Question

From a comment at http://www.davidarno.org/2008/04/08/pash-powershell-for-the-rest-of-us/:

With the ksh, I could type whence -v cd to determine that cd was a tracked alias of say /bin/cd. In PowerShell, cd is an alias of Set-Location, but I only found this out because I typed help cd, and got the Set-Location help page. The whence -v command would report whether the item was a function, alias, tracked alias, or give the file location.

How can we do this in PowerShell?

Answer 1

Use the Get-Command cmdlet, which has a convenient alias gcm:

> Get-Command cd

CommandType     Name                                               ModuleName
-----------     ----                                               ----------
Alias           cd -> Set-Location