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An easter egg built into python to give you the Zen of Python

remote diff with side-by-side ordering.
more information: man sdiff

List all databases in Postgres and their (byte/human) sizes, ordering by byte size descending
Get a listing of all of your databases in Postgres and their sizes, ordering by the largest size first. Requires that you give the -d parameter a valid database name that you can connect to.

run command on a group of nodes in parallel

Update twitter via curl (and also set the "from" bit)
An improvement of the original (at: http://www.commandlinefu.com/commands/view/2872/update-twitter-via-curl) in the sense that you see a "from cURL" under your status message instead of just a "from API" ;-) Twitter automatically links it to the cURL home page.

Paste the contents of OS X clipboard into a new text file

Lookup your own IPv4 address

Find default gateway

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

Rename all images in current directory to filename based on year, month, day and time based on exif information


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