www.pudn.com > linux_chapter02.rar > case2

#!/bin/sh

echo "Is it morning? Please answer yes or no"
read timeofday

case "$timeofday" in
    yes | y | Yes | YES ) echo "Good Morning";;
    n*  | N* )                echo "Good Afternoon";;   
    * )                           echo "Sorry, answer not recognised";;
esac

exit 0