如何在linux bash脚本监控停止weblogic服务？

### BEGIN WLS Configration
DOMAIN_NAME=base_domain
SERVER_NAME=AServer 
ADMIN_URL="t3://ip:7001"
DOMAIN_PATH=/Oracle/Middleware/user_projects/domains/${DOMAIN_NAME}
#使用这个命令得到weblogic对应服务进程的进程号
WLS_PID=`ps -ef|grep java|grep =${SERVER_NAME}|awk '{print $2}'`
#USER_NAME=`logname`
USER_NAME=`whoami`
## WLS_MEMORY
USER_MEM_ARGS="-Xms2048m -Xmx3096m -XX:PermSize=256m -XX:MaxPermSize=512m"
export USER_MEM_ARGS
### END WLS Configration

######### Weblogic server start|stop|restart|status
#用于等待进程启停
wait_for_pid () 
{
 try=0
  case "$1" in
   'created')
    while test $try -lt 7 ; do
    printf .
    try=`expr $try + 1`
    sleep 1
    done      
    WLS_PID=`ps -ef|grep java|grep ${SERVER_NAME}|awk '{print $2}'`      
    if [ "$WLS_PID" != "" ] ; then
     try=''             
    fi
   ;;
   'removed')
    while test $try -lt 35 ; do 
    WLS_PID=`ps -ef|grep java|grep ${SERVER_NAME}|awk '{print $2}'`
    if [ "${WLS_PID}" = "" ] ; then
     try=''
    break
    fi
    printf .
    try=`expr $try + 1`
    sleep 1
    done
   ;;
  esac
}
#判断操作用户名，不能是root需要使用weblogic用户
if [ "$USER_NAME" = "root" ] ; then
 echo "USER_NAME is $USER_NAME! Plz use weblogic!"
 exit 1
fi
#domain不能为空
if [ "$DOMAIN_NAME" = "" ] ; then
 echo "DOMAIN_NAME is not set! Plz set DOMAIN_NAME!"
 exit 1
fi
#service不能为空
if [ "$SERVER_NAME" = "" ] ; then
 echo "SERVER_NAME is not set! Plz set SERVER_NAME!"
 exit 1
fi
#url不能为空
if [ "$ADMIN_URL" = "" ] ; then
 echo "ADMIN_URL is not set! Using default ADMIN_URL!"
fi
#如果是查看状态命令    
if [ "$1" = "status" ]
 then    
 if [ "${WLS_PID}" = "" ] ; then
  echo "No pid - $SERVER_NAME is not running !"
  exit 1
 else 
 echo "$SERVER_NAME is running !"
 exit 0
 fi
fi
printf "Terminating $SERVER_NAME "
 if [ "${WLS_PID}" = "" ] ; then
  echo "No pid - $SERVER_NAME is not running !"
 else     
  kill -9 $WLS_PID
 wait_for_pid removed 
 if [ -n "$try" ] ; then
 echo " failed "
 exit 1     
 fi
  echo " done ! "
  exit 0
 fi
#如果是停止命令，这里不使用这个    
if [ "$1" = "stop" ]
then    
echo ""
else
#启动命令
printf "Starting $SERVER_NAME "
 if echo $SERVER_NAME|grep -q dmin ; then    
  nohup sh $DOMAIN_PATH/bin/startWebLogic.sh &
 else    
  nohup sh $DOMAIN_PATH/bin/startManagedWebLogic.sh $SERVER_NAME $ADMIN_URL &
 fi    
 wait_for_pid created 
 if [ -n "$try" ] ; then
  echo " failed "
  exit 1
 else
  echo " done ! "
  exit 0
 fi  
fi 
echo "To check the log, you may excute:"
echo "tail -100f "