[Mailman-Users] Edit multiple users

[Dave B]

I have approximately 30 people who are subscribed to anywhere from 1 to 
12 lists who have changed their domain from a.com to a .org. Is there a 
way to change all email addresses in all lists with their current 
domain to their new domain. I can probably write a php script that 
breaks up the string returned by find_member and then loops through and 
removes each member from each list and then adds them back with new 
address but I wanted to check and see if there is some built in way to 
do this in Mailman?

Also, is there a command in /bin for editing a user?

Thanks - Dave Bevis