##For start this jar file how service on VPS or any server##

1. Create empty file in path: /etc/init.d

    sudo vi /etc/init.d/aprsclient
   

2. Add shell script:

       #!/bin/sh
       SERVICE_NAME=aprsclient
       PATH_TO_JAR=/var/www/scripts/aprs-client.jar
       PID_PATH_NAME=/tmp/aprsclient-pid
       case $1 in
           start)
               echo "Starting $SERVICE_NAME ..."
               if [ ! -f $PID_PATH_NAME ]; then
                   nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                               echo $! > $PID_PATH_NAME
                   echo "$SERVICE_NAME started ..."
               else
                   echo "$SERVICE_NAME is already running ..."
               fi
           ;;
           stop)
               if [ -f $PID_PATH_NAME ]; then
                   PID=$(cat $PID_PATH_NAME);
                   echo "$SERVICE_NAME stoping ..."
                   kill $PID;
                   echo "$SERVICE_NAME stopped ..."
                   rm $PID_PATH_NAME
               else
                   echo "$SERVICE_NAME is not running ..."
               fi
           ;;
           restart)
               if [ -f $PID_PATH_NAME ]; then
                   PID=$(cat $PID_PATH_NAME);
                   echo "$SERVICE_NAME stopping ...";
                   kill $PID;
                   echo "$SERVICE_NAME stopped ...";
                   rm $PID_PATH_NAME
                   echo "$SERVICE_NAME starting ..."
                   nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                               echo $! > $PID_PATH_NAME
                   echo "$SERVICE_NAME started ..."
               else
                   echo "$SERVICE_NAME is not running ..."
               fi
           ;;
       esac 

3. Set permission on files:

        chmod -R 0755 /etc/init.d/aprsclient
        chmod -R 0755 /var/www/scripts/aprs-client.jar
        chmod -X /etc/init.d/aprsclient
        chmod -X /var/www/scripts/aprs-client.jar

4. Start service:

   service aprsclient start