#!/bin/bash set -e set -x source ./constraint.sh if [ ${ID} -ne 0 ]; then echo "This script has to be run as root." exit fi clean(){ echo Done, cleaning. ${SYNC} kill -9 $(cat /tmp/music.pid) rm -f /tmp/music.pid } trap clean EXIT TERM INT ./music.sh & echo $! > /tmp/music.pid su ${USERNAME} -c ./groomer.sh