Script Download: ManageTaxonomy.zip
http://gallery.technet.microsoft.com/scriptcenter/Manage-Managed-Metadata-9c42efef
This script can manage managed metadata terms in Microsoft SharePoint Server 2010. You can use this script to get terms, add terms or remove terms.
In a real world, a lot of people ask the possibility of managing managed metadata terms by using Windows PowerShell. Since administrators need to manage lot of terms, they really need to find a script to reduce their workload.
You can find more All-In-One Script Framework script samples at http://aka.ms/onescriptingallery