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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.

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Universal configuration monitoring and system of record for IT.

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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!

Top Tags



Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Lists all usernames in alphabetical order

Terminal - Lists all usernames in alphabetical order
getent passwd | cut -d: -f1 | sort
2012-09-12 17:16:54
User: theftf
Functions: cut getent passwd
Lists all usernames in alphabetical order


There are 6 alternatives - vote for the best!

Terminal - Alternatives
cut -d: -f1 /etc/passwd | sort
awk -F ':' '{print $1 | "sort";}' /etc/passwd
2011-12-20 12:46:52
User: atoponce
Functions: awk
Tags: sort awk users

Save some CPU, and some PIDs. :)

cut -d: -f1 /etc/passwd | sort

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