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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!
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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:

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Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

All commands from sorted by
Terminal - All commands - 12,372 results
schtasks /delete /tn * /f
tac [FILE]
netstat -l -p --tcp | egrep -e 'www.*[0-9]{3,4}\/(apache2|httpd)' | awk '{print$7}'
curl -s -O http://s3.amazonaws.com/alexa-static/top-1m.csv.zip ; unzip -q -o top-1m.csv.zip top-1m.csv ; head -1000 top-1m.csv | cut -d, -f2 | cut -d/ -f1 > topsites.txt
2010-11-01 01:25:53
User: chrismccoy
Functions: cut head
Tags: curl unzip cut
-3

this will dump a list of domains one per line into a text file

pgrep -u username php5-fcgi | xargs kill -9
git-createrepo() { repos_path='/srv/git/'; mkdir $repos_path$1; cd $repos_path$1; git init --bare; echo "Repository location: ssh://$USER@`cat /etc/HOSTNAME``pwd`"; cd -; }
2013-05-09 21:44:24
User: batandwa
Functions: cd echo init mkdir
Tags: git
-3

Creates a git repository in a predefined location.

find /Users/jpn/.ievms/ -type f -print0| xargs -0 du -sh
2013-10-16 09:54:19
Functions: du find xargs
-3

When you do a ls -1 | xargs rm it wouldn't workd because those files have spaces. So you must use

find -print0 and xargs -0

for f in `find ./ -name "*.zip"` ; do p=`pwd`; d=`dirname $f`; cd $d; b=`basename $f`; unzip $b; cd $p; done
2009-05-30 03:42:53
User: packetloss
Functions: cd
Tags: find unzip
-3

unzips all zip files in any subdirectory under the current directory. The zip files are unzipped in their respective subdirs

du -hs /example/folder/
lsb_release -a
tar -cf - file1 dir1/ dir2/ | md5sum
2014-04-17 14:33:44
User: snipertyler
Functions: tar
-3

Doesn't create a file

Make sure to list the files / directories in the same order every time.

sudo dpkg -P $(dpkg -l | grep -i adobeair)
cat /proc/cpuinfo
apt-show-versions -u
2009-02-06 17:56:13
User: cowholio4
Functions: apt
-3

apt-show-versions is a program that shows what packages in the system may be updated and several useful information. The -u option displays a list of upgradeable packages:

From: http://www.debian.org/doc/manuals/apt-howto/ch-helpers.en.html

mysql -? | grep ".cnf"
2011-04-02 15:45:52
User: DarkSavant
Functions: grep
Tags: mysql
-3

This will show the locations, in order of preference, that MySQL will look for a configuration file

> [filename]
2011-05-18 14:59:02
User: bbbco
-3

Ever need to erase the contents of a file and start over from scratch? This easy command allows you to do so. Be warned! This will immediately erase all the contents of your file and start you over from scratch (i.e. your file will be at 0 bytes, like if you touch a file).

echo "string" | sed -e 's/.*match1//' -e 's/match2.*$//'
2009-04-01 15:01:27
User: P17
Functions: echo sed
-3

But who knows to delete the rest of the lines?

I want only "string".

ifconfig eth0 | grep 'HWaddr' | awk '{print $5}' | tr 'a-z' 'A-Z' | sed -e 's/://g'
2010-06-26 05:35:03
User: minigeek
Functions: awk grep ifconfig sed tr
-3

This will get the mac address of the eth0 and change lowercase to uppercase.

The sed command removed the colons.

lame rec01.wav rec01.mp3
sudo sox <file name>.wav -r 8000 <file name>.gsm
du -sh *
ls -l `ls -l |awk '/^l/ {print $8}'`
2009-11-23 16:02:18
User: yooreck
Functions: awk ls
-3

ls -l may vary depending on operating system, so "print $8" may have to be changed

sudo sox <file name>.wav -r 8000 <file name>.gsm
TODAY=`date +"%b %d"`;ls -l | grep "$TODAY" | awk '{print $9}'
copy(){ cp -v "$1" "$2"&watch -n 1 'du -h "$1" "$2";printf "%s%%\n" $(echo `du -h "$2"|cut -dG -f1`/0.`du -h "$1"|cut -dG -f1`|bc)';}