gistfile1.sh

#!/bin/bash

echo 0: $0
dirname $0

gistfile2.txt

mwalling@you ~/test$ bash ~/test/test.sh
0: /home/mwalling/test/test.sh
/home/mwalling/test
mwalling@you ~/test$ bash test.sh
0: test.sh
.

gistfile3.sh

#!/bin/sh
# vim:nospell

PROJECTROOT="$(dirname $0)" # This is what "dont work". Its normally manually set to the project root
PIDFILE=$PROJECTROOT/../fcgi.pid
SOCKET=$PROJECTROOT/../fcgi.sock

function stop {
    cd $PROJECTROOT
    kill $( cat $PIDFILE )
}

function start {
    manage.py runfcgi \
        socket=$SOCKET \
        daemonize=true \
        pidfile=$PIDFILE

    chmod a+w $SOCKET
}

if [ x$1 == x ]
then
    CMD="restart"
else
    CMD=$1
fi

case $CMD in
    start)
        start;;
    stop)
        stop;;
    restart)
        stop
        start;;
esac

gistfile4.txt

mwalling@you /home/wwwdata/usercomments.dontlike.us/usercomments$ restartserver.sh
cat: ./../fcgi.pid: No such file or directory
kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]
chmod: cannot access `./../fcgi.sock': No such file or directory