Shell Programming and Scripting

while true; do
read -p "please enter the file you wish to monitor" fname
read -p "are you sure you want to monitor the file: $fname? (Y/N)" yn

  case $yn in
    [Yy]) if [ -d $fname ]; then 
              ./desktop/monitor $fname &
              echo "monitor for $fname launched."
            fi;;

    *) echo "exiting script" 
        exit;;
  esac

  # if you got here, you've launched a monitor
  # so ask if another one should be launched

  read -p "Do you want to launch another monitor? (Y/N)" yn

  case $yn in
      [Yy]) ;;         # leave case statement and continues the while loop
           *) echo "Exiting script"
               exit ;;
  esac

done