Simple way to obtain SharePoint 2010 Farm patch level

 

The following PowerShell script will get the patch level of your farm:

    1: #gets the build string for a SP2010 FARM
    2: Set-ExecutionPolicy Unrestricted
    3: Add-pssnapin microsoft.sharepoint.powershell -EA silentlycontinue
    4:  
    5: $farm = Get-SPFarm
    6: $version = $farm.buildversion
    7: $version