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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.




Commands tagged Ubuntu from sorted by
Terminal - Commands tagged Ubuntu - 77 results
sudo update-rc.d <scriptname> defaults
2011-11-19 08:55:38
User: Dhinesh
Functions: sudo
Tags: Ubuntu

This script will run each time you boot up.The script must be in /etc/init.d directory.

for line in `cat $file`; do firefox -new-tab "$line" & 2>/dev/null; sleep 1; done
2011-11-12 13:47:24
User: hamsolo474
Functions: sleep

this will open a new tab in firefox for every line in a file

the sleep is removable but i found that if you have a large list of urls 50+, and no sleep, it will try to open all the urls at once and this will cause them all to load a lot slower, also depending on the ram of your system sleep gives you a chance to close the tabs before they overload your ram, removing & >2/dev/null will yield unpredictable results.

pacof -e rlogin
2011-11-04 13:17:04
User: pipeliner

Uses dpkg -S or apt-file to find the file you want and shows results in various ways. Available at https://github.com/Pipeliner/configs/blob/master/bin/pacof

pacof -xp 'bin/[^/]*mixer'





alias install='sudo apt-get install'
2011-10-27 19:53:01
User: haivu
Functions: alias
Tags: Ubuntu alias

I put this line in my ~/.bashrc file (which I source via ~/.bash_profile). Now, when I need to install a package, I typed *install* instead of the longer version.

dpkg -c deb_package
aptitude search ~i -F %p
2011-10-15 00:31:10
User: dbbolton

This will print the name of every installed package on a Debian system.

aptitude search ~d<string>
2011-08-02 05:19:13

Especially useful for latex packages, which are listed in the description of their Ubuntu package E.g. say I want to find the Ubuntu package containing latex package aeguill:

aptitude search ~daeguill

p texlive-lang-french - TeX Live: French

sudo sh -c 'gunzip -c source.gz > destination'
2011-07-05 23:51:01
User: UnixNeko
Functions: sh sudo

Extracting .gz files and placing the output in another directory in one command line is convenient thing.

I just followed some how-to to install Nagios on Ubuntu Lucid Lynx but they give the method to install from archives. I wished to install from the repository. If you do so some files are missing. I've not tested yet but this is an example command line I did to extract

sudo sh -c 'gunzip -c /usr/share/doc/nagios3-common/examples/template-object/templates.cfg.gz > /etc/nagios3/objects/templates.cfg'

We need privilege to write the destination file.

pgrep -lf gnome-panel | awk '{if ($2=="gnome-panel") print $1}' | xargs kill -9
2011-06-12 12:23:27
User: UnixNeko
Functions: awk kill xargs

I have some problems with gnome panel which does not load completely leaving me without the actual GUI. This commands helps to kill the gnome-panel process then it should be relaunch automatically.

dlocate /path/to/file
2010-11-18 19:07:12
User: towo

Works similar to dpkg -S, but uses the locatedb and is thus inarguably a lot faster - if the locatedb is current.

sudo sh /usr/share/doc/libdvdread4/install-css.sh
sudo chmod -x /usr/lib/notify-osd/notify-osd
2010-11-10 11:35:43
User: lokutus25
Functions: chmod sudo

Quick and dirty way to disable the Ubuntu notifications that can be quite annoying. It prevent the notify-osd to start so you need to logout Gnome or kill it by hand to take effect.

ffmpeg -i 100_0029.MOV -ss 00:00:00 -t 00:04:00 100_0029_1.MOV
2010-08-08 23:43:28
User: nickleus

i have a large video file, 500+ MB, so i cant upload it to flickr, so to reduce the size i split it into 2 files. the command shows the splitting for the first file, from 0-4 minutes. ss is start time and t is duration (how long you want the output file to be).

credit goes to philc: http://ubuntuforums.org/showthread.php?t=480343

NOTE: when i made the second half of the video, i got a *lot* of lines like this:

frame= 0 fps= 0 q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbit

just be patient, it is working =)

sudo dpkg-reconfigure -a
chmod -R u=rw-x+X,g=r-x+X,o= .
2010-07-16 18:42:00
User: donnoman
Functions: chmod
Tags: bash Ubuntu

forces user to rw, group to r, and other to no access.

files will not be marked executable.

directories will be executable for users and groups only.

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge
2010-06-10 20:33:32
User: mitzip
Functions: sed sudo xargs

This will remove all installed kernels on your debian based install, except the one you're currently using.



2010-05-02 20:24:32
User: rkulla

As of 10.04 LTS, you need to use this command-line to reports bugs to the launchpad.net tracking system (you need a launchpad acct for this to work). This command is preferred over using the website because it collects/sends info about your system to help developers.

ubuntu-bug is a symlink to apport-bug which sees if KDE/Gnome is running and calls apport-gtk/apport-kde dialogs, otherwise apport-cli, so you can fill out a bug report.

First run 'ubuntu-bug' without args to see a list of known symptoms. If there's no matching symptom, or you know which package is to blame, then run 'ubuntu-bug <package>'. If the process is still running, use 'ubuntu-bug <PID>'

APP=wine; if [ $(sudo apt-get --print-uris -y install $APP | sed -ne 's/^After this operation, \([0-9]\{1,\}\).*MB.*/\1/p') -gt 50 ]; then gnometris 2>/dev/null & sudo apt-get install $APP; else sudo apt-get install $APP; fi
2010-04-18 19:32:26
User: rkulla
Functions: install sed sudo

Change the APP variable's value to whatever you want to install. Depending on how fast your machine is, you'll want to adjust the value 50 to something else. You might also want to play a different game than Gnometris - just make sure it's a GUI game.

watch -n 1 "sudo asterisk -vvvvvrx 'core show channels' | grep call"
2010-03-26 15:42:13
User: mheadd
Functions: watch

Show active calls as the happen on an Asterisk server. Note that the Asterisk command (in single quotes) is formatted for Asterisk 1.6. Use the -n flag on the watch command to modify the refresh period (in seconds - default is 2 seconds).

sudo chattr -i <file that cannot be modified>
2010-03-25 03:14:34
User: leovailati
Functions: chattr sudo
Tags: Ubuntu chattr

I had problems in Ubuntu while trying to edit /etc/resolv.conf, even with sudo I couldn't make any change. After a 2 minutes search on google I found this command.

Hope someone finds it useful.

It works like chmod, with + and - to denote which attributes are being added and which are being removed.

See other attributes on man pages or on wikipedia http://en.wikipedia.org/wiki/Chattr

sudo apt-get -o Acquire::http::Dl-Limit=30 upgrade
2010-03-22 01:29:44
User: alemani
Functions: sudo

Limits the usage of bandwidth by apt-get, in the example the command will use 30Kb/s ;)

It should work for most apt-get actions (install, update, upgrade, dist-upgrade, etc.)

flac -cd input.flac |lame -h - output.mp3
2010-03-05 23:54:21
User: nickleus

if you haven't already done so, install lame and flac:

sudo apt-get install lame flac

echo "pretty realistic virtual typing" | randtype -m 4
2010-02-25 15:30:28
User: tehdog
Functions: echo

this also generates errors (change 4 to higher number for more mistakes)