Linux Format forums

RE: Outputting group members

shifty_ben — Thu Apr 06, 2006 3:01 pm

Author: shifty_ben

Posted: Thu Apr 06, 2006 3:01 pm

Excellent Thank you just what I was needing, they are all in there as a secondary group so that makes life much easier

RE: Outputting group members

nelz — Thu Apr 06, 2006 2:34 pm

Author: nelz

Posted: Thu Apr 06, 2006 2:34 pm

If they are members of webhosting ass a secondary group, you can grep this information from /etc/group

Code:

grep ^${GROUP} /etc/group | cut -d: -f4

To find those that are members of the group as their primary group, you'd have to convert the group name to a numeric ID then grep /etc/passwd.

Code:

GID=$(grep ^${GROUP} /etc/group | cut -d: -f3)
egrep ".*?:.*?:.*?:${GID}:.*" /etc/passwd | cut -d: -f1

should do it, although some error checking might be a good idea.

Outputting group members

shifty_ben — Thu Apr 06, 2006 1:37 pm

Author: shifty_ben

Posted: Thu Apr 06, 2006 1:37 pm

Hi all,

Im currently writing a CLI frontend to manage my webserver, it has a few users on it that are all members of the group webhosting. What I seem to have come stuck on is building an offline 'database' of this, the reason database is in apostraphies is because it will jsut be a text file with the relevant details in.
I can't seem to find any way of running a command that will output all the users in a specific group, in this case webhosting.
Im using BASH for the rest of the frontend but if any suggestions are in other languages then I should be able to incorporate that.

Any ideas?

cheers
Ben