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Pulls total current memory usage, including SWAP being used, by all active processes.

Downsample mp3s to 128K
This will lower the quality of mp3 files, but is necessary to play them on some mobile devices.

Buffer in order to avoir mistakes with redirections that empty your files
A common mistake in Bash is to write command-line where there's command a reading a file and whose result is redirected to that file. It can be easily avoided because of : 1) warnings "-bash: file.txt: cannot overwrite existing file" 2) options (often "-i") that let the command directly modify the file but I like to have that small function that does the trick by waiting for the first command to end before trying to write into the file. Lots of things could probably done in a better way, if you know one...

Exclude svn directories with grep
exclude-dir option requires grep 2.5.3

Stat each file in a directory
This will run stat on each file in the directory.

Join the content of a bash array with commas
This type of join is clearly documented in the bash manual. Only the first character of IFS is used for the delimiter.

clear the cache from memory

Extend a logical volume to use up all the free space in a volume group

Find the process you are looking for minus the grepped one
faster ;) but your idea is really cool

Alias for lazy tmux create/reattach


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