[K12OSN] Adding user to a group

[Shawn Powers <spowers inlandlakes org>]

Arg...

Ok, in my previous Debian life (I've adopted Redhat, all due to you 
folks...) it was very simple to add a user to a group.

adduser spowers audio

for example would add me to the audio group, so I could listen music 
whilst I typed away during the day.  It is different in Redhat, and 
while I see *sorta* how I can do it -- there are a few caveats.

usermod spowers -G audio

Will do it, but I believe that gets rid of ALL my other secondary 
groups, and then I only belong to the "spowers" group, and the "audio" 
group.

How do I just ADD myself to a group, without snarfing up previous group 
membership?

BTW, the audio example isn't really the reason I'm asking -- it goes 
along with my other password generating question.  I need to restrict 
the students in usermin so they can't change passwords, and the easiest 
way is to disable a group from using that feature, so I need to add them 
all to a common group.

Thanks AGAIN for any help,
-Shawn




--
Shawn Powers
Technology Director
Inland Lakes Schools
PHN: 231-238-6868 x9174
FAX: 509-356-7024
spowers inlandlakes org
http://techcorner.inlandlakes.org