[Klug-general] managing multiple users

[Evan Ingram]

Hi all

I always assumed managing users would be a lot simpler in linux, but im
struggling to find an easy way to add 500+ users into groups. Got a
couple of groups that I need all users to be a part of.

#!/bin/sh

for USER in userA userB userC userD userE; do
  usermod -G USERS $USER
done

script above should do the trick, but then I'd need to get a list of all
my usernames in the correct format, ie userA userB userC, so i'd have to
use a combination of awk/sed/whatever on /etc/passwd. Is there an easier
way?

cheers