SharePoint 2010: Customize AccessDenied, Confirmation, Error, Login, RequestAccess, Signout, WebDeleted url

In SharePoint Powershell:

Set url:

PS C:\Users\User> Set-SPCustomLayoutsPage -Identity "Signout" -RelativePath
"/_layouts/CustomSignout.aspx" -WebApplication http://webappurl

Get url:

PS C:\Users\User> Get-SPCustomLayoutsPage -Identity "Signout" –WebApplication “http://webappurl”