Commands by frozenfire (4)

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perl insert character on the first line on your file

Replicate a directory structure dropping the files

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Undo
Ctrl+_

To create files with specific permission:

clean up memory of unnecessary things (Kernerl 2.6.16 or newer)
run sync first to flush useful things out to disk!!! To free pagecache: echo 1 > /proc/sys/vm/drop_caches To free dentries and inodes: echo 2 > /proc/sys/vm/drop_caches To free pagecache, dentries and inodes: echo 3 > /proc/sys/vm/drop_caches

List available upgrades from apt (package names only)
Usefull if you only want to see the package names, or if you want to use them in a script.

Commandline document conversion with Libreoffice
In this example, the docx gets converted to Open Document .odt format. For other formats, you'll need to specify the correct filter (Hint: see "Comments" link below for a nice list).

Kill all processes belonging to a user

Copies currently played song in Audacious to selected directory
Maybe it could work for any music player if you change "audacious2" with the string you see in `ps aux` for your player. Needs testing in different systems.


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