Commands tagged Ubuntu

locating packages held back, such as with "aptitude hold "

Bash snippet to force GNU/Linux keyboard settings, layout and configuration.

Usefull when some GNU/Linux distributions such as *Ubuntu's store only limited configation options due to demonstration purposes on LiveUSB or Live persistent devices.

Overcomes the English QWERTY to French AZERTY settings failure.

Code bash en ligne de commande pour forcer l'adoption du clavier AZERTY sur les cl? USB bootable en Ubuntu.

Marks all manually installed deb packages as automatically installed. Usefull to combine with

to have a clean installed debian-based system.

The command tasksel allows the choice of packages from the command line to get predefined configurations for specific services (usually this option is offered during installation).

Only the number of calls nothing else.

Shows all configurations to apt and dpkg, rarely changed, you probably still have the default configuration. Go ahead and explore your configuration if you dare, perhaps change your apt-cache directory, Dir::Cache "var/cache/apt/"; or the names of the log files.

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

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.

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

alsamixergui

alsa-tools-gui

alsa-utils

...

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.

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

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:

p texlive-lang-french - TeX Live: French

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.

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.

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

This command works at least in 9.04+

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.

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 =)

Sometimes, simpler is better.

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.

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

From:

http://tuxtweaks.com/2009/12/remove-old-kernels-in-ubuntu/comment-page-1/#comment-1590