Starten eines Scriptes per PHP

#!/bin/sh

clear

# Edit and uncomment it to run the server as non-root
[b]CS_USER="server"[/b]

PATH=/bin:/usr/bin:/sbin:/usr/sbin

# # DON'T FORGET TO CHANGE THE PATH TO YOUR NEEDS!
DIR=/home/hlds/hlds

DAEMON=$DIR/hlds_run

# LAN-server:
#PARAMS="-game cstrike -nomaster -insecure +sv_lan 1 +maxplayers 16 +map de_dust"
# Internet-server:
PARAMS="-game cstrike +ip 88.84.142.96 +map de_dust +maxplayers 10"

NAME=cstrike
DESC="n00b-Massaker"

case "$1" in
 start)
   echo "Starting $DESC: $NAME"
   if [ -e $DIR ];
   then
    cd $DIR
#  Change the lines for running as non-root!
[b]  su $CS_USER -l -c "screen -d -m -S $NAME $DAEMON $PARAMS"[/b]
    screen -d -m -S $NAME $DAEMON $PARAMS
   else echo "No such directory: $DIR!"
   fi
   ;;

 stop)
   if [[ `screen -ls |grep $NAME` ]]
   then
       echo -n "Stopping $DESC: $NAME"
       kill `screen -ls |grep $NAME |awk -F . '{print $1}'|awk '{print $1}'`
       echo " ... done."
   else
       echo "Coulnd't find a running $DESC"
   fi
   ;;

 restart)
   if [[ `screen -ls |grep $NAME` ]]
   then
       echo -n "Stopping $DESC: $NAME"
       kill `screen -ls |grep $NAME |awk -F . '{print $1}'|awk '{print $1}'`
       echo " ... done."
   else
       echo "Coulnd't find a running $DESC"
   fi
   
   echo -n "Starting $DESC: $NAME"
   cd $DIR
   screen -d -m -S $NAME $DAEMON $PARAMS
   echo " ... done."
   ;;
 
 status)
   # Check whether there's a "hlds" process
   # if "checkproc" is installed, you can use this:
   # checkproc $DIR/hlds_run && echo "CS-Server RUNNING" || echo "CS-Server NOT RUNNING"
   # (thx to commander)
   ps aux | grep -v grep | grep hlds_r > /dev/null
   CHECK=$?
   [ $CHECK -eq 0 ] && echo "HLDS is UP" || echo "HLDS is DOWN"
   ;; 
 
 *)
   echo "Usage: $0 {start|stop|status|restart}"
   exit 1
   ;;
esac

exit 0

%www-data    ALL=NOPASSWD:/da/wo/das/initScript/liegt