Monitoring tomcat start (catalina.out)

on.sh

BASEDIR=$(dirname $0)
PARENTDIR=$(dirname $(dirname $0))

$BASEDIR/startup.sh

FILE=$PARENTDIR/logs/catalina.out

tail -f $FILE |

while read line

do
    echo "$line"
    if [[ $line ==  *"Catalina.start Server startup"* ||
          $line ==  *"Tomcat may not be running"*  ]]
    then
         echo "Log was analyzed" &&  pkill -P $$ tail
         break
    fi
done

if grep -q "Catalina.start Server startup"  $FILE
  then
     echo "Exiting with 0: SUCCESSFUL"
     exit 0
  else
     echo "Exiting with 1: ERROR"
     exit 1
fi