shutdownscript.sh

#!/bin/sh

check_online()
{
   myHost=$1
   pingcount=`ping -c 4 $myHost | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }'`
   if [ "$pingcount" -eq 0 ]; then
      # 100% failed
      return 0
   else
      return 1
   fi
}

wait_for_offline()
{
timeout=$2
timeoutcount=0

check_online "$1"
onlinenow="$?"

while [ $onlinenow -eq 1 -a $timeoutcount -lt $timeout ]; do
   echo "$1 : $timeoutcount seconds and still online, waiting for offline..."
   timeoutcount=`expr $timeoutcount + 15`
   sleep 15
   check_online "$1"
   onlinenow="$?"
done

if [ $onlinenow -eq 0 ]; then
   echo "$1 : is offline after $timeoutcount seconds"
   return 1
else
   echo "$1 : timeout on going offline after $timeoutcount seconds"
   return 0
fi

}

shutdown_server()
{
   check_online "$1"
   online="$?"

   if [ $online -eq 1 ]; then
      echo "$1 : detected online, need to shutdown"
      echo "Executing: shutdown"

      ssh root@$1 'shutdown -h now'

      wait_for_offline $1 120

      offline="$?"
      if [ $offline -eq 1 ]; then
         echo "$1 : Successfully shutdown at $(date)"
         return 0
      else
         echo "$1 : Timeout waiting to shutdown at $(date)"
         return 1
      fi
   else
      echo "$1 : Not online, no need to shutdown."
      return 0
   fi
}

echo "Starting shutdown process at $(date)"
shutdown_server "farm"
exit 0 #ignore failures at this point, just exit