Adding a group.
 

I am trying to add a new group so that I can install DBUS. I do the following:

But I am told that:
groupadd: gid 18 is not unique


Is this a problem?
If so what number should I use?
How can I view already added groups on my machine?


Thanks

HarryBoy

cat /etc/group | cut -d: -f1,3

Thanks buddy :)