Windows PowerShell: changing the command prompt

Question

Using Windows PowerShell, how do I change the command prompt?

For example, the default prompt says

PS C:\\Documents and Settings\\govendes\\My Docume         


        

Answer 1

This version of Warren Stevens' answer avoids the noisy "Microsoft.PowerShell.Core\FileSystem" in the path if you Set-Location to network shares.

function prompt {"PS [$Env:username@$Env:computername]$($PWD.ProviderPath)`n> "}