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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.
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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
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.
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>'
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.
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).
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
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.)
if you haven't already done so, install lame and flac:
sudo apt-get install lame flac
this also generates errors (change 4 to higher number for more mistakes)
Please install aria2c before you try the above command. On ubuntu the command to install aria2c would be:
sudo aptitude install aria2
This command will transcode a MythTV recording. The target device is a Google Nexus One mobile phone. My recordings are from a HDHomerun with Over The Air content. Plays back nicely on the N1.
Use sed to comment out any up/down bindings in zsh
if you still get a permissions error using sudo, then nano the file:
sudo nano -w /sys/block/sdb/queue/rotational
and change 1 to 0
says that this will "help the block layer to optimize a few decisions"