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commandlinefu.com is the place to record those command-line gems that you return to again and again.

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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 - 12,361 results
icacls directory_or_file /grant user_or_group:(oi)(ci)(m,dc)
putty -L 631:localhost:631 [email protected]
awk '/text to grep/{print \$1}' logs... | sort -n | uniq -c | sort -rn | head -n 100
2014-07-10 20:36:02
User: impinball
Functions: awk head sort uniq
Tags: Linux sh
0

Accepts multiple files via logs.... Substitute "text to grep" for your search string.

If you want to alias this, you could do something like this:

alias parse-logs='awk "/$1/{print \$1}" ${@[@]:1} | sort -n | uniq -c | sort -rn | head -n 100'
lame -v 2 -b 192 --ti /path/to/file.jpg audio.mp3 new-audio.mp3
vos listvldb | agrep LOCKED -d RWrite | grep RWrite: | awk -F: '{print $2}' | awk '{printf("%s ",$1)} END {printf("\n")}'
2009-03-17 19:55:39
User: mpb
Functions: awk grep
0

This command shows if there are any locked AFS volumes.

The output is a list of AFS volume IDs (or nothing if there are none locked).

:%s/^/\=line('.').' '
2009-08-16 17:48:03
User: voyeg3r
0

Use this command to insert line numbers in source files, .' ' control how spaces you insert after number.

chr () { echo -en "\0$(printf %x $1)"}
ls -l | grep ^-
www-browser http://en.wikipedia.org/wiki/$(date +'%b_%d')
2011-05-09 02:42:32
User: benjabean1
Functions: date
Tags: bash
0

Improved version of command #8425.

This way, the default browser is used, as opposed to Firefox.

echo $(($(ulimit -u)-$(pgrep -u $USER|wc -l))
perl -le 'print scalar gmtime shift' 1234567890
full() {local i;for i in $*;do readlink -f $i;done}
2012-02-09 11:40:05
User: flxndn
Functions: readlink
0

You can use the command "full" not only with one item, with items with diferent paths, and with relatives and absolute paths.

function cdf () { [ -f $1 ] && { cd $(dirname $1); } || { cd $1 ; }; pwd; };
2012-09-08 10:50:58
User: Josso
Functions: cd dirname
Tags: bash ksh
0

Had trouble with the other function, because of missing semicolons. (According to my bash on OS X)

sudo cp /usr/share/zoneinfo/Europe/Paris /etc/localtime
ps -eLF | grep ^user
2013-07-24 09:53:12
User: balsagoth
Functions: grep ps
Tags: bash processes
0

This shows all process (-e) and threads (-L) in full format (-F)

watch ls -lh /path/to/folder
2014-03-27 10:51:36
User: vonElfensenf
Functions: ls watch
Tags: pv
0

forgot to use a pv or rsync and want to know how much has been copied.

ssh -X [email protected] 'DISPLAY=:0 notify-send "TEST MESSAGE."'
echo 'Enter Picasa album RSS URL:"; read -e feedurl; GET "$feedurl" |sed 's/</\n</g' | grep media:content |sed 's/.*url='"'"'\([^'"'"']*\)'"'"'.*$/\1/' > wgetlist
2009-09-22 10:51:08
User: kamathln
Functions: echo
0

Grab the RSS link to the Picasa album. Feed it to the script when its hungry. When its done writing the shopping list, just use

wget -c -i wgetlist

to get your stuff.

sudo du -sm * | sort -n
2010-09-24 17:56:41
User: wabi
Functions: du sort sudo
0

sudo is optional, but to find out about all files, it is nice, or else run as superuser, ie: su -c 'du -sm * | sort -n'

find ./ -iname "*.dmp" -maxdepth 0 -type f -exec tar czvf {}.tar.gz --remove-files {} \; \;
2011-09-07 08:36:29
User: evilinside
Functions: find tar
0

This command will :

-Archive all *.dmp files individually (one file per archive) from current directory .

-Delete original file after has been compressed.

wget -qO - --post-data "data[Row][clear]=text" http://md5-encryption.com | grep -A1 "Md5 encrypted state" | tail -n1 | cut -d '"' -f3 | sed 's/>//g; s/<\/b//g'
2011-10-13 03:44:48
User: samhagin
Functions: cut grep sed tail wget
Tags: md5
0

Encrypt any text to MD5 , replace text with the string you want to convert to MD5

perl -MO=Deparse filename.pl | perltidy > new.pl
2011-11-16 18:54:30
User: kimmel
Functions: perl
0

This will create a new file with proper code formatting and all comments removed.

groovy -e "def output=args[0]; def terms = args[1].split(','); terms.each { it -> def keyValues = it.split(':'); output = output.replaceAll(keyValues[0],keyValues[1]); } println output;" "`diff -rq . SRC DEST`" "old1:new1,old2:new2"
2012-03-24 02:52:22
User: airline
0

Script has to be modified to be executable! SRC and DEST a relative unix path, olds and news are the terms to be modified.

Very helpful to sync source folders present in different SCM.

If you dont like this one, just use rsync...

cloc --force-lang=yaml --match-f='\.url$' .
watch 'mysql -e "show full processlist;"'