[Script of May 15] Update Owner of a Group with another Group in a Web in Microsoft SharePoint 2010
Script Download: ScriptPack.zip
https://gallery.technet.microsoft.com/scriptcenter/Update-Owner-of-a-Group-1a205289
The script can be used to update Group owner of a web with another group in the same web.
The action can be performed from UI but is often time taking if needed to be done in bulk.
You can find more All-In-One Script Framework script samples at https://aka.ms/onescriptingallery