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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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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

All commands from sorted by
Terminal - All commands - 12,410 results
set -o vi
2009-12-22 20:40:10
User: andykazmaier
Functions: set

Once issuing the command, hit "esc" and then "k" (not together) to enter the search mode at the shell prompt (each time), and invoke the search with "/" as if you would in vi. Type a command and see the most recently used instance of that command. Use "n" and "N" to go forward and backwards through other instances of that command.

favorite --add myhost 'ssh [email protected]'
2017-01-23 18:15:03
User: djangofan
Tags: history

Command 'favorite' to store your favorite commands from history.

sfdisk /dev/sdb <(sfdisk -d /dev/sda| perl -pi -e 's/sda/sdb/g')
2009-12-22 22:45:41
Functions: perl

*as long as the drives are exactly the same* then this command copies the partition table on /dev/sda to /dev/sdb

vboxmanage clonehd --format VMDK <source image|uuid> <destination image>
2010-10-04 16:42:12
User: dreffed

This is based on the Windows Version of VirtualBox.

From the /? ...

VBoxManage clonehd |

[--format VDI|VMDK|VHD|RAW|]

[--variant Standard,Fixed,Split2G,Stream,ESX]

[--type normal|writethrough|immutable|shareable]

[--remember] [--existing]

From the online help..


VBoxManage clonehd

This command duplicates a registered virtual hard disk image to a new image file with a new unique identifier (UUID). The new image can be transferred to another host system or imported into VirtualBox again using the Virtual Media Manager; see the section called ?The Virtual Media Manager? and the section called ?Cloning disk images?. The syntax is as follows:

VBoxManage clonehd |

[--format VDI|VMDK|VHD|RAW|]

[--variant Standard,Fixed,Split2G,Stream,ESX]

[--type normal|writethrough|immutable]


where the parameters mean:


Allow to choose a file format for the output file different from the file format of the input file.


Allow to choose a file format variant for the output file. It is a comma-separated list of variant flags. Not all combinations are supported, and specifying inconsistent flags will result in an error message.


Only honored if --remember is also specified. Defines what kind of hard disk type this image should be.


Keep the destination image registered after it was successfully written.

curl ifconfig.me
2011-03-02 23:04:00
User: Honeypuck

It takes a few seconds until it has figured out your public ip address. You need to have 'curl' installed of course.

vi -R filename
2009-03-04 06:56:40
User: haivu
Functions: vi
Tags: vim

The -R flag prevents you from making changes to a file, useful when you only want to view the file. This command is nicer than the 'more' or 'less' commands because for source codes, vi shows syntax highlight.

for i in `find . | grep jar$`; do echo $i; jar tvf $i | grep 'search-string'; done;
for file in `find *| sort -n | sed 's% %?%g'`; do echo "${file//?/ }"; cp --parents "${file//?/ }" /destinity_folder/ ;done
find . -name .svn -type d | parallel rm -rf
wget -c -v -S -T 100 --tries=0 `curl -s http://ms1.espectador.com/ podcast/espectador/la_venganza_sera_terrible.xml | grep -v xml | grep link | sed 's/]*>//g'`
2009-03-04 13:12:28
User: fmdlc
Functions: grep link sed wget

This download a complete audio podcast

find . -type f | sed 's,.*,stat "&" | egrep "File|Modify" | tr "\\n" " " ; echo ,' | sh | sed 's,[^/]*/\(.*\). Modify: \(....-..-.. ..:..:..\).*,\2 \1,' | sort
while true; do A=$(ls -l FILE | awk '{print $5}'); sleep 1; B=$(ls -l FILE | awk '{print $5}'); echo -en "\r"$(($B-$A))" Bps"; done
2016-06-27 20:33:02
User: Zort
Functions: awk echo ls sleep

Muestra el crecimiento de un archivo por segundo.

Cambia el texto "FILE" por el nombre del archivo a monitorear.

Comando LS + AWK

for file in $(find -type f -iname "*wav"); do mv $file "$file"_orig.WAV; mplayer -ao pcm "$file"_orig.WAV -ao pcm:file=$file; done
alias clear='( for ((i=1;i<$LINES;i++)) ; do echo "" ; done ) ; clear'
2009-10-27 14:38:31
User: Marcio
Functions: alias echo

If you receives a lot of compiling errors, type 'clear', then reedit your code and press "SHIFT+PGUP".

sed ?s/[sub_str]/[sub_str]\n/g? [text_file] | wc -l
for i in $(find . -mtime +30); do mv $i old/; done
2014-02-05 01:24:45
User: valferon
Functions: find mv
Tags: bash file

Will move in that case every file in the current folder older than 30 days to the "old" folder

Replace "mv $i old/" by any command such as rm / echo to do something different.

du | sort -n | tail -11 | head
2009-03-04 16:06:34
User: phage
Functions: du sort tail

The pipe to head removes the listing of . as the largest directory.

for files in $(ls -A directory_name); do sed 's/search/replaced/g' $files > $files.new && mv $files.new $files; done;
2009-05-07 20:13:07
User: bassu
Functions: ls mv sed

Yeah, there are many ways to do that.

Doing with sed by using a for loop is my favourite, because these are two basic things in all *nix environments. Sed by default does not allow to save the output in the same files so we'll use mv to do that in batch along with the sed.

TIMEUNIT=$( cat a | grep -n "timescale" | awk -F ":" '{ print $1 } ' )
alias cn='cat > /dev/null'
2011-09-16 00:00:28
Functions: alias

cn stands for "Cat Null"


The idea is that sometimes you run across something on maybe a webpage - like commandlinefu - that you want to try out on your terminal. You could put a '#' in and then paste it, but what if it is several lines?


This command will echo the pasted characters to the screen and divert them to the bit bucket.


Put this simple alias in your .bashrc, hit cn, paste away, and hit a ctrl+c or a ctrl+d when you are done to get your prompt back.

chown -R webuser:webgroup /var/www/vhosts/domain.com/httpdocs
gconftool-2 --set /apps/metacity/global_keybindings/panel_main_menu --type string "Super_L"
grep 'HOME.*' data.txt | awk '{print $2}' | awk '{FS="/"}{print $NF}' OR USE ALTERNATE WAY awk '/HOME/ {print $2}' data.txt | awk -F'/' '{print $NF}'
2009-03-05 07:28:26
User: rommelsharma
Functions: awk grep

grep 'HOME.*' data.txt | awk '{print $2}' | awk '{FS="/"}{print $NF}'


awk '/HOME/ {print $2}' data.txt | awk -F'/' '{print $NF}'

In this example, we are having a text file that is having several entries like:


c1 c2 c3 c4

this is some data

HOME /dir1/dir2/.../dirN/somefile1.xml

HOME /dir1/dir2/somefile2.xml

some more data


for lines starting with HOME, we are extracting the second field that is a 'file path with file name', and from that we need to get the filename only and ignore the slash delimited path.

The output would be:



(In case you give a -ive - pls give the reasons as well and enlighten the souls :-) )

cd !$
2009-05-08 09:48:14
Functions: cd

During this operation :

# mv Joomla_1.5.10-Stable-Full_Package.zip /var/www/joomla/

I invoke /var/www/joomla/ as last command argument. To change in this directory I can use

# cd !$

So I go to


gzip *
2010-03-29 10:58:40
User: funky
Functions: gzip
Tags: gzip

Should do exactly the same - compress every file in the current directory. You can even use it recursively:

gzip -r .