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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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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!
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Maintained by Jon H.

Site originally by David Winterbottom (user root).

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

Emergency Alien Invasion Warning

Terminal - Emergency Alien Invasion Warning
while true; do xset dpms force off; sleep 0.3; xset dpms force on; xset s reset; sleep 0.3; done
2011-09-07 21:55:41
User: Escher
Functions: sleep
1
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Emergency Alien Invasion Warning

When aliens invade Earth, be first to warn your neighbours by placing your computer screen at a window and executing this potentially Earth-saving command.

Ctrl C when aliens are defeated.

Add to favourites | Report as malicious

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

no neg from me, but it would be nice for the OP to leave a comment when posting a funny one-liner.

.

xset dpms force on|off

is to turn on and off energy-star features

xset s reset

does something with the screen saver

sleep 0.3

might not work in some systems that do not accept anything except whole seconds.

Comment by unixmonkey365 302 weeks and 4 days ago

yeah the 0.3 secs gets rounded to 1 sec on some systems.

although meant for amusement, it does show a simple way to switch the display on/off

combine with a system beep (CTRL-G) for extra annoyance ;-)

Comment by Escher 302 weeks and 3 days ago

Your point of view

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