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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.

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

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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!

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Attempt an XSS exploit on commandlinefu.com

Terminal - Attempt an XSS exploit on commandlinefu.com
perl -pi -e 's/<a href="#" onmouseover="console.log('xss! '+document.cookie)" style="position:absolute;height:0;width:0;background:transparent;font-weight:normal;">xss</a>/<\/a>/g'
2009-07-08 22:26:15
User: isaacs
Functions: perl
Attempt an XSS exploit on commandlinefu.com

Mouse around the title of this item, and note that your cookies are being logged to the console. If I were evil, I could instead send everyone's cookies to my site, and then post up-votes on all my submissions using their cookies, and try to delete every other submission, until clfu was completely pwned by me, redirecting people to malware and porn sites, and so on.

Update - now fixed.


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

Ok, very good. Issue now fixed - was due to a recent attempt to parse commands for <CTRL+A> like insertions. Managed to introduce a security hole at the same time.

I would probably rather you emailed me instead of posting the recipe to the world though.

Comment by root 326 weeks and 1 day ago

I found it educational, as a user of commandlinefu. But as I site owner i know how @root feels.

Comment by mp3tricord 326 weeks and 1 day ago

Hey, thanks!

I found it by accident, and since I had to post a submission in order to test it, I figured this would get your attention. For all I know, someone was already using it quietly. I'll email you next time if I spot something like this.

Comment by isaacs 326 weeks and 1 day ago

Your point of view

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