Commands using ps (300)

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Convert multiple flac files to mp3
make sure that flac and lame are installed sudo apt-get install lame flac

Massive change of file extension (bash)
Using bash parameters expansion

Put public IP address in a variable

all out
How to force a userid to log out of a Linux host, by killing all processes owned by the user, including login shells:

Check if it's OK to spawn tmux. Bool's Rools.
The command cechks if we are connected to a X11 console, if the $TERM var noct yet contains a "screen" derivat, and only then attachs to tmux. You could add a test for interactive shell [[ $- == *i* ]] but your .bashrc has that already, I bet.

Set OS X X11 to use installed Mathematica fonts

Recursive Ownership Change
Changing files ownership in a directory recursivley from a user to another

Watch how many tcp connections there are per state every two seconds.
slighty shorter

Convert filenames from ISO-8859-1 to UTF-8
Nothing advanced, it just finds filenames that are stored with ISO-8859-1 characters and and converts those into UTF-8. Recommended to use without the --notest flag first so you can see what will be changed.

display a smiling smiley if the command succeeded and a sad smiley if the command failed
you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;)


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