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Find the package a command belongs to on debian-based distros
Advanced revision to the command 8776 . This revision follows symbolic links. The quotation-marks surrounding $(which $1) allows for graceful handling of errors ( ie. readlink does not complain incase 'which' command generates (null) output)

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Use GNU info with a pager
This makes GNU info output menu items recursively and pipe its contents to less, allowing one to use GNU info in a manner similar to 'man'.

Email an svn dump
Dumps a compressed svn backup to a file, and emails the files along with any messages as the body of the email

This is N5 sorta like rot13 but with numbers only
This is N5 sorta like rot13 but with numbers only. Encrypt echo "$1" | xxd -p | tr '0-9' '5-90-6' Decrypt echo "$1" | tr '0-9' '5-90-6' | xxd -r -p

Throttle download speed (at speed x )
Throttle download speed $aria2c --max-download-limit=100K file.metalink Throttle upload speed $aria2c --max-upload-limit=100K file.torrent

vimdiff local and remote files via ssh
Lifted from http://linux.spiney.org/remote_diff_with_vim_and_ssh which points out credits for the inspiration.

Combines an arbitrary number of transparent png files into one file
This one liner; combines all sequentially numbered files; in this example IMG_0001.png to IMG_1121.png by generating the shell script, making the shell script executable and then running the shell script to combine the 1121 png into a single png file named _final.png tested on Mac OS X 10.6.3 with ImageMagick 6.5.8-0 2009-11-22 Q16 http://www.imagemagick.org

List only directories, one per line
omit the 1 (one) if you don't need one-per-line

Show a random oneliner from commandlinefu.com
This will parse a random command json entry from http://commandlinefu.com A must have in your .bash_profile to learn new shell goodies at login!!!


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