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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 - 11,847 results
mtop se -1
2011-06-14 19:12:13
User: 0disse0
Tags: mysql mtop

mtop allows you to monitor the operation of a MySQL application in real time. See, among the high, the number of queries performed per second, slower queries, the number of active processes.

To install on Ubuntu

sudo apt-get-y install mtop

wajig large
ip addr show eth0 | grep ether | awk '{print $2}'
2011-05-01 19:54:46
User: ryanc
Functions: awk grep
Tags: Network Linux

Linux specific, requires iproute2 (but most distros have that by default now)

eval "`dircolors -b`"
2009-03-27 05:37:04
User: isaacs
Functions: eval
Tags: ls

If you put this in your .bashrc, you might also want to add this to make it use the colors by default:

alias ls="ls --color=auto"
localIP() { ifconfig ${1:--a} | sed '/Link encap\|inet\|6 addr/!d;s/Link encap.*$//;s/.*inet addr:\([0-9\.]*\).*/\1/g;s/.*inet6 addr: \(.*\) .*/\1/g' ; }
2011-03-20 04:59:54
User: vando
Functions: ifconfig sed

If you don't send an interface, it shows private IP address of all interfaces

echo "-------------" >> nicinfo.txt; echo "computer name x" >> nicinfo.txt; ifconfig | grep status >> nicinfo.txt; ifconfig | grep inet >> nicinfo.txt; ifconfig | grep ether >> nicinfo.txt; hostinfo | grep type >> nicinfo.txt;
command >&-
more /var/log/auth.log |grep "month"|grep ipop|grep "failed"|wc -l
2010-03-12 18:48:53
User: efuoax
Functions: grep more wc

Usefull if you want to check if something is applying a dictonary of brute force.

sha1sum * >> SHA1SUMS
2010-05-05 18:14:52
User: manny79
Functions: sha1sum

Alternative command for performing an sha1 hash for a given set of files matched by a wildcard

xinput list | grep -i touchpad
2011-03-20 14:22:14
User: 0disse0
Functions: grep


xinput set-prop 13 "Device Enabled" 0

how to disable touchpad, and

xinput set-prop 13 "Device Enabled" 1

how to enable again

"intelligenti pauca"

echo "" | grep -P '([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])'
netstat -atn | grep :22 | grep ESTABLISHED | awk '{print $4}' | sed 's/:22//'
find <path> -name "*.tgz" -or -name "*.tar.gz" | while read file; do echo "$file: "; tar -tzf $file; done
2009-11-10 20:39:04
User: polaco
Functions: echo find read tar
Tags: find tar list

This script will list all the files in the tarballs present on any folder or subfolder of the provided path. The while loop is for echoing the file name of the tarball before listing the files, so the tarball can be identified

on the listening side: sudo nc -lp 2022 | sudo tar -xvf - and on the sending side: tar -cvzf - ./*| nc -w 3 name_of_listening_host 2022
2009-03-27 09:59:33
User: smcpherson
Functions: sudo tar
Tags: netcat

This is useful for sending data between 2 computers that you have shell access to. Uses tar compression during transfer. Files are compressed & uncompressed automatically. Note the trailing dash on the listening side that makes netcat listen to stdin for data.

on the listening side:

sudo nc -lp 2022 | sudo tar -xvf -

explanation: open netcat to -l listen on -p port 2022, take the data stream and pipe to tar -x extract, -v verbose, -f using file filename - means "stdin"

on the sending side:

tar -cvzf - ./*| nc -w 3 name_of_listening_host 2022

explanation: compress all files in current dir using tar -c create, -v verbose, -f using file, - filename - here means "stdout" because we're tar -c instead of tar -x, -w3 wait 3 seconds on stream termination and then end the connection to the listening host name_of_listening_host, on port 2022

smartypants | php -r "echo mb_decode_numericentity(file_get_contents('php://stdin'),array(0x0000,0xFFFF,0x0000,0xFFFF),'UTF-8');"
2009-08-14 04:02:38
User: infinull

Turns regular quotes into curly quotes, also converts hyphens to dashes using a heuristic and outputs the result as UTF-8, suitable to copy/paste into wordprocessor.

requires: http://daringfireball.net/projects/smartypants/ (which does most of the work)

(I renamed smartypants.pl to smartypants before adding it to my $PATH)

Also requrires PHP with the multibyte module installed (its installed by default with PHP, but the sysadmin on one server I use disabled it... presumadly to increase performance or something).

svmon -P [PID] -O filename=on
find . -name "*noticia*" -name "*jhtm*" -name "*.tpl" -exec grep -li "id=\"col-direita\"" '{}' \; | xargs -n1 mate
curl -s http://geoiplookup.wikimedia.org/ | python3 -c 'import sys, json, string, webbrowser; webbrowser.open(string.Template("http://maps.google.com/maps?q=$lat,$lon").substitute(json.loads(sys.stdin.read().split("=")[-1])))'
mv data.{json,yaml}
2013-04-25 07:47:32
User: bunam
Functions: mv
Tags: json yaml

since Mozai said that JSON is a subset of YAML ;)

over myscript.sh
2009-03-13 06:13:21
User: haivu

over works like 'more' or 'less', but it pretty print the source code

ifconfig | grep "inet addr" | cut -d: -f2 | cut -d' ' -f1
echo "shutdown -h now" | sudo at now + 4 hours
2011-05-02 15:29:48
User: depesz
Functions: at echo sudo

Benefit is that it doesn't make you keep the terminal open.

curl --silent http://exsample.com/ | xmllint --html --format - | more
cp data.{json,yaml}
look mysql /etc/group
2009-04-24 18:20:20
Functions: look

Look search for lines in a file that beginning with a given string.

Same as $ grep ^n /etc/passwd