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2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.




All commands from sorted by
Terminal - All commands - 11,951 results
svn st | grep "^\?" | awk "{print \$2}" | xargs rm -rf
svn diff --diff-cmd diff -x -uw /path/to/file
2009-02-10 20:39:54
User: katylava
Functions: diff

get subversion diff output without distracting whitespace changes. good for when you are cleaning up code to make sure you didn't change anything important. also useful when working with old code, or someone else's code.

rsync -zav --progress original_files_directory/ root@host(IP):/path/to/destination/
2009-02-10 17:01:04
User: haithamg
Functions: rsync

copying files from one server to another using rysnc. Root access need to be allowed on the destination.

rename .oldextension .newextension *.oldextension
2009-02-10 16:58:05
User: haithamg
Functions: rename

Changing a file extension to a new one for all files in a directory.

chown -cR --from=olduser:oldgroup newuser:newgroup *
2009-02-10 16:55:09
User: haithamg
Functions: chown

Changing files ownership in a directory recursivley from a user to another

find . -name Root -print | xargs rm -f
tar zcvf somedir-$(date +%Y%m%d-%H%M).tar.gz somedir/
2009-02-10 15:25:40
User: kmac
Functions: date tar

A useful bash function:



if [ $# -ne 1 ] ; then

echo "incorrect arguments: should be gztardir "


tar zcvf "${1%/}-$(date +%Y%m%d-%H%M).tar.gz" "$1"



archivefile=filename-$(date +%Y%m%d-%H%M).tar.gz
cat file.php | perl -p -e 's/(\$|->)(str|arr|obj|int|flt|boo|bool|mix|res)([A-Z])/$1\L$3/g'
2009-02-10 14:37:12
User: root
Functions: cat perl

This removes the type prefix used in Hungarian notation (v. bad) for PHP variables. Eg. variables of the form $intDays, $fltPrice, $arrItems, $objLogger convert to $days, $price, $Items, $logger.

alias ll="ls -lh --color=auto"
cd XX YY
2009-02-10 13:20:11
User: yogsototh
Functions: cd

If you are in /begin/path/with/XX/pattern

cd XX YY

will change your current directory to


in ZSH

find . -name "*.java" -exec gnome-terminal \-x vim {} \;
2009-02-10 09:38:04
User: root
Functions: find vim

Not that useful really, more novel. Can open up an awful lot of terminal windows.

find . -name "*.php" -exec php -l {} \; | sed -e "/^No syntax/d"
2009-02-10 09:14:25
User: TomNomNom
Functions: find sed

Uses the PHP binary to check the syntax of all .php files in or below the current working directory. Really handy for doing that last minute check before you commit code to the repository.

sudo date mmddhhxxyyyy
git add -u
ps aux | grep [h]ttpd
2009-02-10 02:59:20
User: abcde
Functions: grep ps

Surround the first letter of what you are grepping with square brackets and you won't have to spawn a second instance of grep -v. You could also use an alias like this (albeit with sed):

alias psgrep='ps aux | grep $(echo $1 | sed "s/^\(.\)/[\1]/g")'

xxdiff -r --exclude=.svn
2009-02-09 23:07:07
User: andrewf

Needs xxdiff installed, which looks a bit clunky but is an extremely powerful graphical diff.

2009-02-09 22:38:56
User: chrisdrew
Functions: script

Creates a log of a session in a file called typescript. Or specify the file with:

script filename

Exit the session with control-d.

ls -R | grep : | sed -e '\''s/:$//'\'' -e '\''s/[^-][^\/]*\//--/g'\'' -e '\''s/^/ /'\'' -e '\''s/-/|/'\''
2009-02-09 22:32:01
User: scw
Functions: grep ls sed

Shows the current directory and those below it in a simple tree structure. Recommended use:

alias lt='$command_above'

aticonfig --pplib-cmd "set fanspeed 0 <number>"
grep -lir "text to find" *
sudo date -s "26 OCT 2008 19:30:00"
dvd+rw-format /dev/dvd
wodim -v dev=/dev/dvd -blank=fast
find /dir/ -name *name*
2009-02-09 20:24:10
User: cinan
Functions: find

"*" is important if you don't know exact name of file. Check it out and you'll see