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shifty_ben
LXF regular
Joined: Tue Oct 04, 2005 10:56 am
Posts: 1292
Location: Ipswich
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 Posted: Thu Apr 06, 2006 1:37 pm Post subject: Outputting group members |
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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
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nelz
Moderator
Joined: Mon Apr 04, 2005 12:52 pm
Posts: 7993
Location: Warrington, UK
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| Posted: Thu Apr 06, 2006 2:34 pm Post subject: RE: Outputting group members |
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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.
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Last edited by nelz on Thu Apr 06, 2006 7:52 pm; edited 1 time in total |
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shifty_ben
LXF regular
Joined: Tue Oct 04, 2005 10:56 am
Posts: 1292
Location: Ipswich
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| Posted: Thu Apr 06, 2006 3:01 pm Post subject: RE: Outputting group members |
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Excellent Thank you  just what I was needing, they are all in there as a secondary group so that makes life much easier
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