Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.


If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Universal configuration monitoring and system of record for IT.
Hide

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

Hide

News

May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!
Hide

Top Tags

Hide

Functions

Hide

Credits

Add a user to a group

Terminal - Add a user to a group
useradd -G {group-name} username
2013-10-31 13:16:59
Functions: useradd
-6
Add a user to a group

Add a user to a group

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
gpasswd -a USER GROUP

Know a better way?

If you can do better, submit your command here.

What others think

The description is a little misleading.

usermod -G GROUP1,GROUP2,GROUP3 username

is how you would add an existing user to groups.

Comment by sonic 81 weeks and 1 day ago

From the usermod manual page (shadow-utils 4.1.5.1):

If the user is currently a member of a group which is not listed, the user will be removed from the group. This behaviour can be changed via the -a option, which appends the user to the current supplementary group list.

So no. This will not "add a user to a group". This will specify exactly what the secondary groups for the user will be. `-G` alone doesn't "add" anything.

Comment by george_a 81 weeks ago

oops, you said `useradd` not `usermod`. Sorry :)

Comment by george_a 81 weeks ago

Your point of view

You must be signed in to comment.