rave.sh

#!/bin/sh
if [ "$(whoami)" != "root" ]
then
    echo "Must run as root."
    exit 1
fi

for program in wget mplayer
do
    hash $program 2>/dev/null || { echo >&2 "I require $program but it's not installed.  Aborting."; exit 1; }
done

clean_up() {
    echo "RAVE CONCLUDED!"
    echo 0 > /sys/class/leds/tpacpi\:\:thinklight/brightness
    kill -9 $mplayerpid
    exit 0
}

trap clean_up INT

if [ ! -e /tmp/rave.wav ]
then
    echo "FETCHING EPIC BEATS!"
    wget -O /tmp/rave.wav sadbox.org/static/rave.wav 1> /dev/null 2>&1
fi

echo "RAVE TIME!"

mplayer -loop 0 /tmp/rave.wav 1>/dev/null 2>&1 &

mplayerpid=$!

while true
do
    echo 255 > /sys/class/leds/tpacpi\:\:thinklight/brightness
    sleep .05
    echo 0 > /sys/class/leds/tpacpi\:\:thinklight/brightness
    sleep .05
done