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
or
Sign in Register

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:

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

Tags

Hide

Functions

Hide

Credits

Site by David Winterbottom (user root).

Commands by sxiii

Commands by sxiii from sorted by
Terminal - Commands by sxiii - 7 results
curl http://en.wikipedia.org/wiki/List_of_programming_languages | grep "<li>" | awk -F"title=" '{ print $2 }' | awk -F\" '{ print $2 }'
2013-01-09 21:40:11
User: sxiii
Functions: awk grep
Tags: Programming bash awk grep language
0
Up
Down
Command to get list of all existing programming languages from Wikipedia article

Requirements: curl, grep, awk, internet connection with access to wikipedia

Loaded page: http://en.wikipedia.org/wiki/List_of_programming_languages

If you can make shorter version of this listgetter, you are welcome to paste it here :)

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
curl http://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains | grep "<tr valign=\"top\">" | awk -F">" '{ print $5 }' | awk -F"<" '{ print $1 }'
2012-12-24 21:00:36
User: sxiii
Functions: awk grep
Tags: list domain name
-3
Up
Down
Oneliner to get domain names list of all existing domain names (from wikipedia)

Oneliner to get domain names list of all existing domain names (from wikipedia)

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -iname "*.mp3" -execdir mid3iconv -e <encoding> {} \;
2011-12-14 18:10:27
User: sxiii
Functions: find
0
Up
Down
Fix MP3 tags encoding (to UTF-8). Batch fixes all MP3s in one directory.

Fixes MP3 tags encoding (to UTF-8).

Batch fixes all MP3s in one directory.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
tcpdump | aplay -c 2
2011-08-27 15:03:02
User: sxiii
Functions: aplay tcpdump
0
Up
Down
Output sound when your computer is downloading something

Outputs pseudo-random sounds to speakers (stereo mode because of -c 2) when there are any kind of network activity.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps ax > processes && cat processes | egrep "*.exe |*exe]" | awk '{ print $1 }' > pstokill && kill $(cat pstokill) && rm processes && rm pstokill
2011-02-26 16:13:58
User: sxiii
Functions: awk cat egrep kill ps rm
Tags: kill wine exe
-4
Up
Down
kill all running instances of wine and programs runned by it (exe)

This command kills all wine instances and each EXE application working on a PC.

Here is command info:

1) ps ax > processes = save process list to file named "processes" (we save it because we don't wont egrep to be found in the future)

2) cat processes | egrep "*.exe |*exe]" = shows the file "processes" and after greps for each *.exe and *exe] in it

3) | awk '{ print $1 }' > pstokill = saves processes PID's to file "pstokill" using awk filter

4) kill $(cat pstokill) = kills each PID in file pstokill, which is shown by cat program

5) rm processes && rm pstokill = removes temporary files

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
x=192.168.1.1; whois $x > $x.txt
2011-01-17 03:33:49
User: sxiii
Functions: whois
-4
Up
Down
Whois on target and save results to file instantly

This can be used in scripts, to find out the origin of target IP etc.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
mplayer -tv driver=v4l2:gain=1:width=640:height=480:device=/dev/video0:fps=10:outfmt=rgb16 -vo aa tv://
2010-12-07 05:17:00
User: sxiii
6
Up
Down
ASCII webcam live stream video using mplayer

Mplayer starts a webcam capture using ASCII art. Only mplayer required

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate