A utility for exploiting PostgreSQL notification events: pgear, a listen-and-respond daemon written in C.
A perl module for easy use of PostgreSQL functions: SP::Fn.
A perl script to wake up your (linux) computer, set-wakeup.
A permuted index in C++.
chain_sendable - a rails plugin for safely chaining method calls.
Everyone should play with Haskell at some point, so here's my fully functional fizzbuzz file.
ssc-sender - automate sending of files to a remote server, in ruby.
switch.rb - a solution to the switch room puzzle.
cut-csv.rb - like cut but quote-aware.
xterm-keep.sh - run something in a terminal that closes a little while after it finishes, but stays open if you press return.
For bash, setprompt - change your shell prompt if a command failed.
Have your computer email a reminder to you (or someone else) at some time in the future with email-at.sh. Uses mutt.