A Krunal Jani's Blog

ShellScript: [void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")   $site = New-Object Microsoft.SharePoint.SPSite("http://sitecollection URL")   $web=$site.OpenWeb()   if ($web -ne $Null)   {         $AverageRating=$web.Fields[[System.Guid]"5a14d1ab-1513-48c7-97b3-657a5ba6c742"]         $RatingCount=$web.Fields[[System.Guid]"b1996002-9167-45e5-a4df-b2c41c6723c7"]         $PagesList=$web.lists["Pages"]         if ($PagesList -ne $Null)         {               Write-Host " Processing List : " $PagesList.Title               $ct=$PagesList.ContentTypes["Page"]               If ($ct -ne $null)               {                     Write-Host " Adding Rating columns to content type : " $ct.name                     $AverageRatinglink = new-object Microsoft.SharePoint.SPFieldLink $AverageRating                     $RatingCountLink = new-object Microsoft.SharePoint.SPFieldLink $RatingC