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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 using xargs from sorted by
Terminal - Commands using xargs - 639 results
ls | xargs -I{} du -sh {}
curl -s $1 | grep -o -i '<a href="//images.4chan.org/[^>]*>' | sed -r 's%.*"//([^"]*)".*%\1%' | xargs wget
2013-07-22 10:33:55
User: bugmenot
Functions: grep xargs

first grep all href images then sed the url part then wget

find ./ -type f -print0 | xargs -0 md5sum
find ./ -type f | sed "s:[\ \',\"]:\\\&:g" | xargs md5sum
2013-07-17 18:54:14
User: crazedsanity
Functions: find sed xargs

Recursively list all files in the current directory & get their md5sum, even if the filename has bad characters.

ssh [email protected] "find basedir -type d" | xargs -I {} -t mkdir -p {}
2013-07-17 07:14:32
User: neomefistox
Functions: mkdir ssh xargs

The directories are created in the local host with the same structure below of a remote base directory, including the 'basedir' in case that it does not exists.

You must replace user and remotehost (or IP address) with your proper values

ssh will ask for the password of the user in remotehost, unless you had included properly your hostname in the remote .ssh/known_hosts file.

qdbus | grep kscreenlocker_greet | xargs -I {} qdbus {} /MainApplication quit
2013-07-11 10:50:03
User: Murz
Functions: grep xargs

Do the unlock KDE screen saver locked session with lightdm display manager used in Kubuntu 12.10 +

find . | sort | awk 'NR%2==0' | xargs rm $1
2013-07-11 07:36:18
User: sucotronic
Functions: awk find rm sort xargs

If you have a directory with lot of backups (full backups I mean), when it gets to some size, you could want to empty some space. With this command you'll remove half of the files. The command assumes that your backup files starts with YYYYMMDD or that they go some alphabetical order.

find . -name ".DS_Store" -print0 | xargs -0 rm -rf
diff <(cd A; find -type f|xargs md5sum ) <(cd B; find -type f | xargs md5sum )
2013-07-02 18:02:05
User: glaudiston
Functions: cd diff find md5sum xargs

This is usefull to diff 2 paths in branches of software, or in different versions of a same zip file. So you can get the real file diff.

find . -empty -type d -print0 | xargs -0 rmdir -p
2013-07-01 02:44:57
User: rafar
Functions: find rmdir xargs

It starts in the current working directory.

It removes the empty directory and its ancestors (unless the ancestor contains other elements than the empty directory itself).

It will print a failure message for every directory that isn't empty.

This command handles correctly directory names containing single or double quotes, spaces or newlines.

If you do not want only to remove all the ancestors, just use:

find . -empty -type d -print0 | xargs -0 rmdir
find . -type d -print0 | xargs -0 du -s | sort -n | tail -10 | cut -f2 | xargs -I{} du -sh {} | sort -rn
find . -name '*.jpg' -o -name '*.JPG' -print0 | xargs -0 mogrify -resize 1024">" -quality 40
2013-06-20 16:09:41
User: minnmass
Functions: find xargs

The "find $stuff -print0 | xargs -0 $command" pattern causes both find and xargs to use null-delineated paths, greatly reducing the probability of either hiccuping on even the weirdest of file/path names.

It's also not strictly necessary to add the {} at the end of the xargs command line, as it'll put the files there automatically.

Mind, in most environments, you could use find's "-exec" option to bypass xargs entirely:

find . -name '*.jpg' -o -name '*.JPG' -exec mogrify -resize 1024">" -quality 40 {} +

will use xargs-like "make sure the command line isn't too long" logic to run the mogrify command as few times as necessary (to run once per file, use a ';' instead of a '+' - just be sure to escape it properly).

find . -name '*.jpg' -o -name '*.JPG' | xargs -I{} mogrify -resize 1024">" -quality 40 {}
2013-06-20 15:20:29
Functions: find xargs

First use find to find all the images that end with jpg or JPG in the current dir and all its children.

Then pipe that to xargs. The -I{} makes it so spaces in filenames don't matter.

The 1024">" makes it so it takes any image greater in dimension than 1024 and resizes them to 1024 width, but keeping aspect ratio on height.

Then it sets the image quality to 40.

Piping it through xargs means you avoid the file count limit, and you could run this on your entire file system if you wanted.

mysql -uuser -ppass -e 'use information_schema; SELECT table_name FROM tables where table_schema="DB-NAME" and table_name NOT LIKE "PREFIX";' | grep -v table_name | xargs mysqldump DB-NAME -uuser -ppass > dump.sql
2013-06-17 13:44:15
User: moosak
Functions: grep xargs

Required : information_schema

** Only replace the "DB-NAME" and "PREFIX" with your DB-name and wildcard prefix match.

** Also replace with your own username and password for mysql server.

This command uses the information_schema to wildcard match tables that we donot need from a database and than pipes the remaining tables out through "xargs" command to the mysqldump utility which than dumps those remaining tables into a sql dump file.

find /usr/include/ -name '*.[c|h]pp' -o -name '*.[ch]' -print0 | xargs -0 cat | grep -v "^ *$" | grep -v "^ *//" | grep -v "^ */\*.*\*/" | wc -l
2013-06-17 08:37:37
Functions: cat find grep wc xargs

Count your source and header file's line numbers. This ignores blank lines, C++ style comments, single line C style comments.

This will not ignore blank lines with tabs or multiline C style comments.

git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}' | xargs git branch -d
watch 'ls -tr1 | tail -n1 | xargs tail'
2013-05-09 11:37:59
User: batandwa
Functions: tail watch xargs
Tags: tail ls xargs watch

Watches for file modifications in the current directory and tails the file.

ls *.jpg | xargs -n1 -i cp {} /external-hard-drive/directory
svn ls -R | egrep -v -e "\/$" | xargs svn blame | awk '{count[$2]++}END{for(j in count) print count[j] "\t" j}' | sort -rn
2013-05-03 01:45:12
User: kurzum
Functions: awk egrep ls sort xargs
Tags: svn count

This one has a better performance, as it is a one pass count with awk. For this script it might not matter, but for others it is a good optiomization.

find /etc -type f -print0 | xargs -r0 grep --color ''
2013-04-30 15:03:20
User: jakezp
Functions: find grep xargs

find ip address in all files in /etc directory. can be used to find any string in any directory really

dstat -d --nocolor --noheaders|xargs --max-args=2|while read status; do if [ "$status" == "0 0" ]; then setleds -L -caps < /dev/console; else setleds -L +caps < /dev/console; fi; done
2013-04-24 18:32:25
User: intangi
Functions: read setleds xargs

Some computers these days don't have an HDD activity light, but they still have a useless caps-lock, so why not re-purpose that light to show HDD activity?

Requires setleds and dstat and probably needs to run as root.

svn ls -R | egrep -v -e "\/$" | tr '\n' '\0' | xargs -0 svn blame | awk '{print $2}' | sort | uniq -c | sort -nr
2013-04-10 19:37:53
User: rymo
Functions: awk egrep ls sort tr uniq xargs
Tags: svn count

make usable on OSX with filenames containing spaces. note: will still break if filenames contain newlines... possible, but who does that?!

find . -name *js -type f | xargs yardstick | sort -k6 -n
2013-04-06 00:19:46
User: noah
Functions: find sort xargs

The number on the far right is ratio of comments to code, expressed as a percentage. For the rest of the Yardstick documentation see https://github.com/calmh/yardstick/blob/master/README.md#reported-metrics

ps aux | grep [process] | awk '{print $2}' | xargs -I % ls /proc/%/fd | wc -l
find /var/www/ -type f -print0 | xargs -0 chmod 644