A simple shell script to run a Java program from Linux shell in the background

README.md

This is a simple script to run a Java program from Linux shell in the background - so that the process does not terminates when you log out of the shell.

Usage is simple:

• Start the process

$ ./java-app-run.sh start

• Stop the process

$ ./java-app-run.sh stop

This makes sure that the process does not get launched twice. Creates a simple pid file in the path specified at APPPID.

java-app-run.sh

#!/bin/sh

APPNAME="AEM Scoping Tool"
APPCODE=aemscope
APPBASE=/home/sangupta
APPPID=$APPBASE/runs/$APPCODE.pid
APPJAR=$APPBASE/aem-scope.jar
APPOPTS="-XX:-LoopUnswitching -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled"

case $1 in
    start)
        echo "Starting $APPNAME server ..."
        if [ ! -f $APPPID ]; then
            nohup java $APPOPTS -jar $APPJAR /home/admin/$APPCODE 2>> /dev/null >> /dev/null &
            echo $! > $APPPID
            echo "$APPNAME started!"
        else
            echo "$APPNAME is already running ..."
        fi
    ;;

    stop)
        if [ -f $APPPID ]; then
            PID=$(cat $APPPID);
            echo "Stopping $APPNAME..."
            kill $PID;
            echo "$APPNAME stopped!"
            rm $APPPID
        else
            echo "$APPNAME is not running ..."
        fi
    ;;

    *)
        echo "Choose an option start/stop for the service"
    ;;
esac

I run on Linux Server but it not work properly