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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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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.

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» http://twitter.com/commandlinefu10

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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,…):

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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

Commands by fsilveira from sorted by
Terminal - Commands by fsilveira - 4 results
rename -v 's/ /_/g' *
mv -vi file{,~}
2009-08-14 19:29:59
User: fsilveira
Functions: mv

Very helpful when you've got complex filenames and needs to change just some small parts of it.

Renaming a file called "i-made-a-small-typo-right-here" to "i-made-a-big-typo-right-here":

mv -vi i-made-a-{small,big}-typo-right-here

You could also copy multiple files, edit, remove, process, etc.

wget -qO - http://www.commandlinefu.com/feed/tenup | xmlstarlet sel -T -t -o '<x>' -n -t -m rss/channel/item -o '<y>' -n -v description -o '</y>' -n -t -o '</x>' | xmlstarlet sel -T -t -m x/y -v code -n
2009-08-14 02:44:00
User: fsilveira
Functions: wget

This lengthy cryptic line will print the latest top 10 commandlinefu.com posts without their summaries. To print also their respective summaries use the following (even bigger) command line:

wget -qO - http://www.commandlinefu.com/feed/tenup | xmlstarlet sel -T -t -o '<doc>' -n -t -m rss/channel/item -o '<item>' -n -o '<title>' -v title -o '</title>' -n -o '<description>' -v description -o '</description>' -n -o '</item>' -n -t -o '</doc>' | xmlstarlet sel -T -t -m doc/item -v description/code -n -v title -n -n

It is recommended to include this line into a shell script to be easily run, as I do myself. You could also use the following URLs to browse the top 3 commands:

wget -qO - http://www.commandlinefu.com/feed/threeup | xmlstarlet ...

.. or all others:

wget -qO - http://feeds2.feedburner.com/Command-line-fu | xmlstarlet ...

PS: You need to install "xmlstarlet" to run it. It is found in Debian APT repositories (apt-get install xmlstarlet) or under the http://xmlstar.sourceforge.net/ URL.

find . -type f -printf '%20s %p\n' | sort -n | cut -b22- | tr '\n' '\000' | xargs -0 ls -laSr
2009-08-13 13:13:33
User: fsilveira
Functions: cut find ls sort tr xargs
Tags: sort find ls

This command will find the biggest files recursively under a certain directory, no matter if they are too many. If you try the regular commands ("find -type f -exec ls -laSr {} +" or "find -type f -print0 | xargs -0 ls -laSr") the sorting won't be correct because of command line arguments limit.

This command won't use command line arguments to sort the files and will display the sorted list correctly.