Shell Programming and Scripting

 
Scr_Dir=/dise/vclwrk33/J2EEServer/config/ABP-FULL/ABPServer/scripts
Log_File=/tmp/Enabler_Check.log
  Server_Stat=""
  Retries=0
  Retry_Max=4
#Checking if the script is executable by the current process
    if [ -x $Scr_Dir/startServer ]
    then
            echo "Starting the Server now...." >> $Log_File
            $Scr_Dir/startServer > /dev/null 2>&1
             sleep 60
#Until loop to check the status of the server until the server is up
        until [ $Server_Stat = UP ]
        do
              $Scr_Dir/pingServer | grep UP
              if [ $? -eq 0 ]
              then
                      Server_Stat= UP
                      echo "/n Server has been started successfully..../n" >> $Log_File
              else
#Retrying 4 times in every 4 mins
                      Retries=$( expr $Retries + 1 )
                        if [ $Retries -gt $Retry_Max ]
                        then
                             echo "Timed out in starting the Server.." >> $Log_File
                             exit 1
                        else
                             sleep 240
                        fi
             fi
       done
     else
                echo "Error Executing startServer script..." >> $Log_File
                exit 1
     fi

while [ $Retries -lt 4 ]
do
              $Scr_Dir/pingServer | grep UP
              if [ $? -eq 0 ]
              then
                      echo "/n Server has been started successfully..../n" >> $Log_File
                      exit 0
              else
                             Retries=$( expr $Retries + 1 )
                             sleep 240
               fi
done

echo "Timed out in starting the Server.." >> $Log_File