Shell script for stopping Nodemanger

#!/bin/sh
#Script name: stopNodeManager.sh
#Path: /home/bea/weblogic103/server/bin/
#Author: pavankumar
PID=`ps -ef | grep weblogic.NodeManager | grep -v grep | awk '{print $2}'`
if [ ! -z $PID ]
then
    ps -ef | grep weblogic.NodeManager | grep -v grep
    echo;echo;echo
    echo "Stopping NodeManager with pid:$PID ..."
    kill -9 $PID
    PID=`ps -ef | grep weblogic.NodeManager | grep -v grep | awk '{print $2}'`
    if [ -z $PID ]
    then
        echo "DONE."
    else
        echo "FAILED."
        exit 1
    fi
else
    echo "NodeManager is not running"
fi