<hppavilion[1]> learn HackEgo, also known as HackBot, is a bot that runs arbitrary commands on Unix. See `help for info on using it. You should totally try to hax0r it! Make sure you assume a spherical cow in a vacuum. HackEgo is the slowest bot in all Mexico!

#!/bin/bash
topic="$(echo "$1" | lowercase | sed 's/^\(an\?\|the\) //;s/s\? .*//')"
stuff=$(echo "$1" | cut -d' ' -f2-)
perl -i -p -e 's/\n/ /' "wisdom/$topic"
echo "$stuff" >>"wisdom/$topic"
echo -n "Learned '$topic': "
cat "wisdom/$topic"