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2011-03-12 - Confoo 2011 presentation
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2011-01-04 - Moderation now required for new commands
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2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
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Top Tags



List all groups and the user names that were in each group

Terminal - List all groups and the user names that were in each group
for u in `cut -f1 -d: /etc/passwd`; do echo -n $u:; groups $u; done | sort
2009-08-22 09:06:02
User: hemanth
Functions: echo groups
List all groups and the user names that were in each group

"cut" the user names from /etc/passwd and then running a loop over them.


There are 5 alternatives - vote for the best!

Terminal - Alternatives
groups $(cut -f1 -d":" /etc/passwd) | sort

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What others think

Glad you're enjoying our blog. In future, however, it would be nice if you gave some attribution when you're posting our content here on commandlinefu. This one is from http://blog.commandlinekungfu.com/2009/06/episode-44-users-groups-part-ii.html

By the way, this command lists all groups that each user is a member of, not the users in each group. For the latter answer, see http://blog.commandlinekungfu.com/2009/06/episode-43-users-groups.html

Comment by Hal_Pomeranz 296 weeks and 6 days ago

it's shorter in my fedora:

for u in `cut -f1 -d: /etc/passwd`; do groups $u; done | sort

Comment by Charon 296 weeks and 4 days ago

Your point of view

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