#!/bin/bash
DATE=`date +%Y-%m-%d`;
CHRISTMAS="2007-12-24";
HNY="2007-12-31";
case $DATE in
2007-12-24)
echo "I wish you a Merry Christmas!";
;;
2007-12-31)
echo "I wish you Happy New Year!";
;;
*)
echo "Have a nice DAY!";
;;
esac