#!/bin/bash# Using the new (( )) compound let command# Scriptname: tellme2echo -n "How old are you? "read ageif (( age < 0 || age > 120 )) then	echo "Welcome to our planet! "	exit 1  fiif ((age >= 0 && age <= 12)) then                 	echo "A child is a garden of verses"elif ((age >= 13 && age <= 19 ))    then   echo "Rebel without a cause"elif (( age >= 19 &&  age <=  29 ))then   	echo "You got the world by the tail!!"elif  (( age >=  30 &&  age <= 39 ))then	echo "Thirty something..."else	echo "Sorry I asked"fi