start script outputing pid

gistfile1.txt

#!/bin/bash

MYDIR=$(dirname $0)
STATFILE=$MYDIR/command.pid
COMMAND_MARK="myprocess.jar"

MEMORY_OPTIONS="-Xms32m -Xmx256m"
MISC_OPTIONS="-Djava.awt.headless=true"
LOG_FILE=console.log

function launch_COMMAND() {
    pushd .
    cd  $MYDIR
    source local.env

    echo Starting Process ...;
    java -server $MEMORY_OPTIONS $MISC_OPTIONS -jar $COMMAND_MARK > $LOG_FILE 2>&1 &
    PID=$!
    echo $PID > $STATFILE
    popd
}

function shutdown_COMMAND() {
    # this function assumes that command will gracefully exit on SIGTERM
    echo Shutting down process...;
    kill $(cat $STATFILE);
    rm $STATFILE;
}



# main()
echo "Background application control script"
case "$1" in
start)
    if [ -f $STATFILE ]; then
	# pidfile exists.checking if it is valid or stale.
	ps  $(cat $STATFILE)  | grep $COMMAND_MARK
	if [[ $? == 0 ]]; then
	    # Process is a COMMAND , so the pidfile is not stale, AND the process is running.
	    echo Process $(cat $STATFILE) is still running, you can not start it again
	    exit 1
	else
	    # A process with that pid exists, but is not our process, so the pidfile must be stale
	    rm $STATFILE
	    launch_COMMAND;
	fi
    else
	# pidfile does not exist, so COMMAND was not started
	launch_COMMAND;
    fi
    ;;

stop)
    if [ -f $STATFILE ]; then
	# pidfile exists.checking if it is valid or stale.
	ps  $(cat $STATFILE)   | grep $COMMAND_MARK
	if [[ $? == 0 ]]; then
	    # Process is a COMMAND , so the pidfile is not stale, AND the process is running.
	    echo Process $(cat $STATFILE) is  running,shutting down
	    shutdown_COMMAND;
	    exit 0
	else
	    # A process with that pid exists, but is not our process, so the pidfile must be stale
	    rm $STATFILE
	    echo Not Started 2.
	    exit 2
	fi
    else
	# pidfile does not exist, so COMMAND was not started
	echo Not started 3.;
	exit 3
    fi
    ;;
*)
    echo "Usage : $0 {start|stop}"
esac