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.

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.

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:



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

Set Time Zone in Ubuntu

Terminal - Set Time Zone in Ubuntu
sudo dpkg-reconfigure tzdata
2009-04-20 02:08:23
User: hank
Functions: sudo
Set Time Zone in Ubuntu

Reconfigures time zone in Ubuntu, which I cannot figure out how to do through the GUI. Worked like a charm to set my time zone to CEST from EDT.


There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

yes, and there's actually a distro-independent way of doing this... trying to remember it though. Ah yes, here we go:

# If you wish, backup the previous timezone configuration by copying it to a different location. Such as

mv /etc/localtime /etc/localtime-old

# Create a symbolic link from the appropiate

timezone to /etc/localtime. Example: ln -sf /usr/share/zoneinfo/Europe/Amsterdam /etc/localtime

# ...aaaaaaaaand to set up UTC:

vi /etc/sysconfig/clock # change the UTC line to: "UTC=true"
Comment by linuxrawkstar 392 weeks and 4 days ago

errata: the "timezone to /etc/localtime. Example:" isn't a command. It was highlighted as a command but should be regarded as a #comment instead.

Comment by linuxrawkstar 392 weeks and 4 days ago

the handy command


will also do this for you (probably will need root permission).

I think it's distro independant (if it's in angstrom, I'm pretty sure it's everywhere), but it is there on ubuntu

Comment by clockworkavian 392 weeks and 3 days ago

This should launch the Time and Date settings dialog:


It works in ubuntu, but it should work in any GNOME installation according to the manual page.

Comment by jcollado 374 weeks and 3 days ago

Your point of view

You must be signed in to comment.