All commands sorted by votes | commandlinefu.com

Hide

What's this?

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.

If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

OpenID

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)

Hide

News

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.

Hide

Functions

Hide

Credits

Site by David Winterbottom (user root).

Terminal - All commands - 11,484 results

alias df="df | awk 'NF == 1 {printf(\$1); next}; {print}'"

2011-04-09 06:43:51

User: MeaCulpa

Functions: alias

-4

Up
Down

df without line wrap on long FS name

Personally I think line wrap in default df command is annoying for scripting & seeing. So I overwrite it. Maybe more work should be done if wrapped line is over 2...

while :; do integer i=0; COL=$((RANDOM%$(tput cols))); ROW=$((RANDOM%$(tput cols))); while (( i <= COL)) do tput cup $i $ROW; echo "\033[1;34m" $(cat /dev/urandom | head -1 | cut -c1-1) 2>/dev/null; i=$(expr $i + 1); done done

2010-05-28 11:17:43

User: mfrancime

Functions: cat cut echo expr head tput

Tags: Matrix Style

-4

Up
Down

Blue Matrix

Matrix Screen HPUX

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

echo 3 > /proc/sys/vm/drop_caches

2012-08-05 19:35:14

User: andreisid

Functions: echo

-4

Up
Down

free up memory

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

synclient TouchPadOff=1

2013-04-02 23:28:36

User: eastwind

-4

Up
Down

disable touchpad

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

synclient TouchPadOff=0

2013-04-02 23:29:03

User: eastwind

-4

Up
Down

enable touchpad

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

scp $user@$server:$path/to/file .

2010-08-02 16:26:10

User: burned

Functions: scp

Tags: ssh bash download

-4

Up
Down

Download a file securely via a remote SSH server

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

echo **/* | xargs grep 'hoge'

2011-04-12 13:18:41

User: yukirin

Functions: echo grep xargs

-4

Up
Down

grep 'hoge' **/* => Argument list too long

if Argument list too long

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sitepass2() {salt="this_salt";pass=`echo -n "$@"`;for i in {1..500};do pass=`echo -n $pass$salt|sha512sum`;done;echo$pass|gzip -|strings -n 1|tr -d "[:space:]"|tr -s '[:print:]' |tr '!-~' 'P-~!-O'|rev|cut -b 2-15;history -d $(($HISTCMD-1));}

2010-12-09 08:42:24

User: Soubsoub

Functions: cut gzip strings tr

Tags: Security

-4

Up
Down

This generates a unique and secure password with SALT for every website that you login to

This is a safest variation for "sitepass function" that includes a SALT over a long loop for sha512sum hash

grep -r hoge .

2011-04-12 17:39:52

User: depesz

Functions: grep

-4

Up
Down

grep 'hoge' **/* => Argument list too long

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

for f in * ; do mv -- "$f" "${f/[0-9][0-9] \- /}" ; done

2009-04-10 11:06:13

User: servermanaged

Functions: mv

-4

Up
Down

Rename files that have number, space and hyphen

I have often file like this

01 - file.file

02 - file.file

03 - file.file

I rename all with this command

for f in * ; do mv -- "$f" "${f/[0-9][0-9] \- /}" ; done

then it looks like this

file.file

etc

Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

ack hoge .

2011-04-12 17:40:15

User: depesz

-4

Up
Down

grep 'hoge' **/* => Argument list too long

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

rdate -s time-A.timefreq.bldrdoc.gov

2009-03-24 15:37:51

User: Anonecho

Functions: rdate

-4

Up
Down

set the system date

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

./encode.sh [ h264 | xvid | theora | mpeg4 ]

2009-12-01 12:16:31

User: sandeepverma

-4

Up
Down

http://xname.cc/text/video-streaming-on-wan.pdf (encode.sh)

./encode.sh [ h264 | xvid | theora | mpeg4 ]

wmwave

2009-05-09 20:33:27

User: servermanaged

-4

Up
Down

Graphical display of wireless links

wmwave is part of wmwave package, when launched display a small wireless link monitor on your desktop with noise, level and link power.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

read enterKey

2009-12-29 00:18:32

User: bbmarek

Functions: read

Tags: bash read

-4

Up
Down

Press Any Key to Continue

how to finish command or script without any output

gpg --verify file.txt.asc file.txt

2011-09-17 04:58:56

User: kev

Functions: gpg

Tags: GPG

-4

Up
Down

verify a file using its detached signature

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

alias gtasks='chromium-browser --app=https://mail.google.com/tasks/ig'

2011-12-05 22:11:00

User: Bonster

Functions: alias

-4

Up
Down

Google Tasks webapp using Chromium Browser

requires a gmail account, it opens Google tasks in a self contain window, to write your todo list and have it sync online yay =)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

gpg -d file.txt.gpg -o file.txt

2011-09-17 05:04:59

User: kev

Functions: gpg

Tags: GPG

-4

Up
Down

decrypt file.txt.gpg using my private key

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

tail -f to.log | colorize.pl +l10:".*" &

2012-01-20 21:46:47

User: peter4512

Functions: tail

Tags: perl

-4

Up
Down

colorize and continuously tail two files

(follow with next command)

tail -f from.log | colorize.pl +l20:".*" &

Use with http://www.commandlinefu.com/commands/view/10031/intercept-monitor-and-manipulate-a-tcp-connection. - can use to view output of tees that send traffic to files - output will be interwoven with red for sent traffic and green for received.

get colorize.pl from http://www.flinkmann.de/71-1-Colorizepl.html

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

alias findstring="find . -type f -print | xargs grep $1"

2009-06-10 20:48:54

User: dezza

Functions: alias

-4

Up
Down

Quick findstring recursively in dirs (Alias from long find with xargs cmd)

Comments (14) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

for i in {21..79};do echo -e "\x$i";done | tr " " "\n" | shuf | tr -d "\n"

2011-04-14 01:43:40

User: hunterm

Functions: echo tr

Tags: echo password tr for shuf for loop generator alpha symbols digit

-4

Up
Down

Random Password Generator (uses all chars, no repeated chars)

Generates a password using symbols, alpha, and digits. No repeating chars.

man <COMMAND>

2013-04-05 16:08:01

User: gruesome_twosome

Functions: man

-4

Up
Down

Get some useful Information

Just type man and the name of the command you want information on followed by enter.. POW!!! there you have all you need to know on the subject.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

pkill

2009-05-11 00:32:51

User: professoralex

-4

Up
Down

kill process by name

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

if [[ lm = $(cat /proc/cpuinfo | grep " lm ") ]] ; then echo "64 bits" ; else echo "32 bits" ; fi

2013-02-11 22:40:46

User: agd

Functions: cat echo grep

Tags: hardware 32bit 64bit

-4

Up
Down

Check if *hardware* is 32bit or 64bit

CPU flags:

rm --> 16-bit processor (real mode)

tm --> 32-bit processor (? mode)

lm --> 64-bit processor (long mode)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

for FILE in $(ls); do [COMMAND]; done

2009-02-17 14:42:46

User: stinger

-4

Up
Down

small one-line loop, change for different taste :P

# Small for loop, that can list files in dir, and after that executes

# [COMMAND] of your choice, usefull for example rename, move, tar etc..

# change cmd's for different results :)

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

‹ First < 433 434 435 436 437 > Last ›