how to add a user to a new group?
this is really a newbie question, but how do I add a user to a new group? For example, I have this user account "john" that is already part of the following groups:
users adm audio wheel
now, I need to add him into the group "video". But if I use "usermod -G", I need to retype all the existing groups. Is there an easier way to just add the new group on top of the existing one? Thanks.