Linux Custom startup and shutdown script for java or any server application

Startup:

#!/bin/bash

export JAVA_HOME=/usr/lib/jvm/java-8-oracle

export PATH=$PATH:/$JAVA_HOME/bin

cd /opt/jweb/daemon/jmsd/

#kill old instance .. just a cleanup

pid=`cat ./mpid`

kill $pid

sleep 2

kill -9 $pid

#Following lines will create file name for old log file and archiving it 

n=`date +'%F_%T.out'`

echo $n

mv lcj.out $n

gzip -9vf $n

#hadoop jar lcjmsdaemon.jar 1 ./applicationContext.xml &

#hadoop jar lcjmsdaemon.jar 1 > ./lcj.out 2>&1 &

java -server -jar logger.jar &

echo $! > ./mpid

Shutdown:

#!/bin/bash 

cd /opt/jweb/daemon/jmsd/

pid=`cat ./mpid`

kill $pid

sleep 2

kill -9 $pid