Startup script linux

#! /bin/sh
 ### BEGIN INIT INFO
 # Provides:          OpenSimulator
 # Required-Start:    $local_fs $network 
 # Required-Stop:     $local_fs
 # Default-Start:     2 3 4 5
 # Default-Stop:      0 1 6
 # Short-Description: Tedds OpenSimulator init.d-script
 ### END INIT INFO
 
 # Put script in /etc/init.d/
 # then execute: update-rc.d opensim defaults
 
 set -e
 
 #
 # Directories
 #
 # Location of OpenSimulator installation
 DIR=/home/opensim/OpenSim/bin/
 # Different PID dir?
 PIDDIR=$DIR
 
 USER=opensim
 SERVICES="Robust.exe OpenSim.exe"
 
 #
 # Kill values (in seconds)
 #
 # How long between each service being started
 DELAY_STARTUP=10
 # How long between each service is sent shutdown command
 DELAY_KILL=10
 # After shutdown has been sent to all we do another loop with "kill", then "kill -9". How long between "kill" and "kill -9".
 DELAY_FORCEKILL=10
 
 #
 # Info on service handled by this script
 
 # Name of service
 NAME=opensim
 # Description of service
 DESC="OpenSimulator Server"
 
 # Binaries
 SCREEN=/usr/bin/screen
 MONO=/usr/bin/mono
 
 ###########################
 ##### START OF SCRIPT #####
 ###########################
 
 export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
 
 
 
 # Load LSB log functions
 _lsbFile=""
 if [ -e /etc/debian_version ]; then
     _lsbFile="/lib/lsb/init-functions"
     if [ -f $_lsbFile ]; then
         . $_lsbFile
     else
         echo "This script requires LSB init-functions file which does not exist: $_lsbFile"
         exit 1
     fi
 else
 # [ -e /etc/init.d/functions ] ; then
     _lsbFile="/etc/init.d/functions"
     if [ -e $_lsbFile ]; then
         . $_lsbFile
     else
         echo "This script requires LSB init-functions file which does not exist: $_lsbFile"
         exit 1
     fi
 fi
 
 # Lets use fancy output
 log_use_fancy_output
 
 # Check that target directory exists
 if test ! -d "$DIR"; then
     log_failure_msg "$NAME" "Target directory \"$DIR\" does not exist. Can not continue."
     exit 1
 fi
 
 # Create a reverse order for shutdown
 SERVICES_REVERSE=""
 reverse() { SERVICES_REVERSE="$9 $8 $7 $6 $5 $4 $3 $2 $1"; }
 reverse $SERVICES
 
 # Check if a service is running
 isrunning() { 
     ISRUNNING="0"
     # Do we have PID-file?
     if [ -f "$PIDDIR/$1.pid" ]; then
         # Check if proc is running
         pid=`cat "$PIDDIR/$1.pid" 2> /dev/null`
         if [ "$pid" != "" ]; then
             if [ -d /proc/$pid ]; then
                 # Process is running
                 ISRUNNING="1"
             fi
         fi
     fi
     #ISRUNNING="0"
 }
 
 #
 # Process commands
 #
 case "$1" in
 start)
     # Start all services one by one
     for server in $SERVICES; do
         log_daemon_msg "Starting $NAME" "$server"
 
         isrunning $server
         case "$ISRUNNING" in
             1) log_progress_msg "Process already started. Please stop first"; log_end_msg 1 ;;
             0) 
                 # Process is not running
                 # Start process and sleep...
                 exefile="/tmp/exe.OpenSim.$server.sh"
 
                 # Need to make external file, had big problems with screen params
                 echo \#\!/bin/bash > $exefile
                 echo cd $DIR >> $exefile
                 echo $MONO $server >> $exefile
                 chmod +x $exefile
 
                 cmd_screen="screen -S $server -d -m $exefile"
                 start-stop-daemon --start -b -x /bin/su -m --pidfile=/tmp/su.$server.pid --chdir "$DIR" -- - $USER "-c $cmd_screen"
 
                 # Delay between services that are started
                 sleep $DELAY_STARTUP
 
                 rm $exefile 2> /dev/null
 
                 # Make PID-file
                 ps afxu | grep "mono $server" | grep -iEv "grep|screen" | awk {'print $2'} > "$PIDDIR/$server.pid"
 
                 isrunning $server
                 case "$ISRUNNING" in
                     1) 
                         # Process started ok
                         #log_progress_msg "Success"; 
                         log_end_msg 0 
                         ;;
                     0) 
                         # Process did not start... remove pid-file
                         rm "$PIDDIR/$server.pid" 2> /dev/null
                         #log_progress_msg "Failure"; 
                         log_end_msg 1 
                         ;;
                 esac
                 ;;
         esac
 
     done
     ;;
 
 
 
 stop)
     _killCount=0
 
     for server in $SERVICES_REVERSE; do
         log_daemon_msg "Stopping $NAME" "$server"
 
         isrunning $server
         case "$ISRUNNING" in
         1) 
             _killCount=`expr $_killCount + 1`
             log_progress_msg "Sending shutdown command:"; 
 
             # We add some backspaces to the command in case something is on the console already
             echo "screen -S $server -X stuff"                             
 
             # Wait for it to shut down...
             sleep $DELAY_KILL
 
             isrunning $server
             case "$ISRUNNING" in
                 1) log_progress_msg "is still running."; log_end_msg 0 ;;
                 0) log_progress_msg "has been shutdown"; log_end_msg 0 ;;
             esac
 
             ;;
         0) 
             log_progress_msg "is not running"; log_end_msg 0
             ;;
         esac
 
     done
 
     # Check if any procs are still running
     for server in $SERVICES; do
         isrunning $server
         case "$ISRUNNING" in
         1) 
             log_warning_msg "Stopping $NAME" "$server is still running: Forcing kill"
             echo `kill $pid 2> /dev/null`;
             sleep $DELAY_FORCEKILL
             echo `kill -9 $pid 2> /dev/null`;
             sleep 1
 
             # Now check again if it is still running...
             isrunning $server
             case "$ISRUNNING" in
                 0) log_progress_msg "Success"; log_end_msg 0 ;;
                 1) log_progress_msg "Process is still running... Even after \"kill -9 $pid\". WOW..."; log_end_msg 0 ;;
             esac
             ;;
         0) 
             #log_progress_msg ""; 
             ;;
         esac
     done
 
     log_begin_msg "$NAME: All done (killed $_killCount procs)"; log_end_msg 0
 
     ;;
 
 
 
 
 
 status)
     # Count how many processes we need
     PROCCOUNT=0
     for i in $SERVICES; do
         PROCCOUNT=`expr $PROCCOUNT + 1`
     done
 
     # Go through server PID files and count how many are running
     log_begin_msg "$NAME: Running processed:"
     _pidCount=0
     for server in $SERVICES; do
 
         isrunning $server
         case "$ISRUNNING" in
             1) 
                 # This server is running
                 _pidCount=`expr $_pidCount + 1`
                 log_progress_msg "$server"
                 ;;
             0) 
                 ;;
         esac
     done
 
     log_begin_msg " ($_pidCount of $PROCCOUNT processes are running)"; log_end_msg 0
 
     # Check if running proc count matches requires proc count
     log_begin_msg "$NAME is"
     if [ $_pidCount -eq $PROCCOUNT ]; then
         log_progress_msg "running"; log_end_msg 0
         exit 0
     else
         log_progress_msg "NOT running"; log_end_msg 0
         exit 1
     fi
     ;;
 
 restart)
     $0 stop
     $0 start
     ;;
 *)
     echo "Usage: /etc/init.d/$NAME {start|stop|restart|status}" >&2
     exit 1
     ;;
 esac
 
 exit 0