Shell Programming and Scripting

#!/bin/sh

MW_HOME=/home/vasan/Oracle/Middleware
JAVA_HOME=/home/vasan/Oracle/Middleware/jrockit_160_29_D1.2.0-10
DAEMON_USER="vasan"
PROCESS_STRING="weblogic.NodeManager"
WL_HOME=/home/vasan/Oracle/Middleware/wlserver_12.1

source $WL_HOME/server/bin/setWLSEnv.sh > /dev/null
export NodeManagerHome=”$WL_HOME/common/nodemanager”
NodeManagerLockFile=”$NodeManagerHome/nodemanager.lok”

PROGRAM=”$MW_HOME/wlserver_12.1/server/bin/startNodeManager.sh”
SERVICE_NAME=`/bin/basename $0`
LOCKFILE=”/var/lock/subsys/$SERVICE_NAME”

RETVAL=0

start() {
  OLDPID=`/usr/bin/pgrep -f $PROCESS_STRING`
  if [ ! -z "$OLDPID" ]; then
    echo “$SERVICE_NAME is already running pid $OLDPID !”
    exit
  fi

  echo -n $”Starting $SERVICE_NAME: “
  /bin/su $DAEMON_USER -c “$PROGRAM &”

  RETVAL=$?
  echo
  [ $RETVAL -eq 0 ] && touch $LOCKFILE
}

stop() {
  echo -n $”Stopping $SERVICE_NAME: “
  OLDPID=`/usr/bin/pgrep -f $PROCESS_STRING`
  if [ "$OLDPID" != "" ]; then
    /bin/kill -TERM $OLDPID
  else
    /bin/echo “$SERVICE_NAME is stopped”
  fi
  echo
  /bin/rm -f $NodeManagerLockFile
  [ $RETVAL -eq 0 ] && rm -f $LOCKFILE
}

restart() {
  stop
  sleep 10
  start
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart|force-reload|restart)
    restart
    ;;
  condrestart|try-restart)
    [ -f$LOCKFILE ] && restart
    ;;
  status)
    OLDPID=`/usr/bin/pgrep -f $PROCESS_STRING`
    if [ "$OLDPID" != "" ];then
      /bin/echo “$SERVICE_NAME is running pid:$OLDPID”
    else
      /bin/echo “$SERVICE_NAME is stopped”
    fi
    RETVAL=$?
    ;;
  *)
    echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
    exit 1
esac
exit $RETVAL

echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"

echo "Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"