Commands using usermod (7)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

Install pip with Proxy
Installs pip packages defining a proxy

Ripping VCD in Linux
Ripping VCD in Linux

List .log files open by a pid
Uses lsof to display the full path of ".log" files opened by a specified PID.

Inverted cowsay
It's quite fun to invert text using "flip.pl" (ref: http://ubuntuforums.org/showthread.php?t=2078323 ). Slightly more challenging is to flip a whole "cowsay". :-)

exit if another instance is running
runs only one instance.

Trick find -exec option to execute alias
An alias cannot be executed as command in a find -exec line. This form will trick the command line and let you do the job.

view the system memory in clear text
see what's in your memory right now... sometimes you find passwords, account numbers and url's that were recently used. Anyone have a safe command to clear the memory without rebooting?

Nice info browser
pinfo package provide a nice info alternative based on ncurses.


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