SharePoint PowerShell script to cleanup all recycle bins in a site collection

This PowerShell script will take a site collection URL as input and will then itterate through each sub web in the site collection, clearing it's recycle bin before finally clearing the site collection recycle bin at the end.
This script is very useful if you're moving site collections around after mass item activity, such as migrations.  Running this script against your site collection will cleanup space in the database so it can be de-bloated from it's post migration state.


[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint");
$url = $args[0];
$site = new-object microsoft.sharepoint.spsite($url);
for ($i=0;$i -lt $site.allwebs.count;$i++)
{
  write-host $site.allwebs[$i].url "...deleting" $site.allwebs[$i].recyclebin.count "item(s).";
  $site.allwebs[$i].recyclebin.deleteall();
}
write-host $site.url "...deleting" $site.recyclebin.count "item(s).";
$site.recyclebin.deleteall();
$site.dispose();

Delete-Site-Recycle-Bin.ps1 http://MySharePointSiteCollectionURL