Mailman command line management of discussion lists

Hi – we switched to Dreamhost from a local server a while ago and it’s been wonderful. The one thing that I’m missing from my workflow is command line access to the discussion lists. For example, I would love to use the clone_member command to change an email address in all of my lists. The sync_members command would also be useful so that I don’t have to remove all members and then readd whenever my partner sends me updates to the current lists. If there’s any way to do this, it would be awesome. Thanks!! Ben