#!/usr/bin/ksh
# a script to handle yes or no responses
read user_resp?"Answer (yes or no)? "
#determine whether response was negative or affirmative
case $user_resp in
[Yy]|[Yy][Ee]|[Yy][eE][Ss])
	print "Your answer was affirmative!"
	;;
[Nn]|[Nn][Oo])
	print "Your answer was negative!"
	;;
*)
	print "I don't know what you are saying!"
	;;
esac