tellme

UNIX[1].shell范例精解(第4版)_code

#!/bin/ksh
# Scriptname: tellme
read age?"How old are you? "
if (( age < 0 || age > 120 ))
then
	print "Welcome to our planet! "
	exit 1  
fi
if (( age >= 0 && age < 13 ))
then
	print "A child is a garden of verses"
elif (( age > 12 && age < 20 ))
then
	print "Rebel without a cause"
elif (( age >= 20 && age < 30 ))
then
	print "You got the world by the tail!!"
elif (( age >= 30 && age < 40 ))
then
	print "Thirty something..."
else
 	print "Sorry I asked"
fi