A nerdy Christmas greeting script [original post: http://questionmark.blogsome.com/2008/12/24/nerdy-christmas-take-2/ ]

greet-xmas.sh

#!/bin/bash

#lights_off
#
#          *==<
#           /\
#          /  \
#         / @  \
#        /      \
#       / @    @ \
#           ||
#
#       NERDY CHRISTMAS
#       AND
#       GEEKY NEW YEAR!
#

#lights_on
#
#          *==<
#           /\
#          / *\
#         / @  \
#        / *  * \
#       / @  * @ \
#           ||
#
#       NERDY CHRISTMAS
#       AND
#       GEEKY NEW YEAR!
#

	
frows=14;
stime=1;
which tput >/dev/null || alias tput=“clear”;
	
display(){
    tput cup 0 0;
    grep -A$frows \#”$1″ “$0″ | tail -n$frows | sed ’s/#/\ /’;
}
	
animation(){
     display lights_off && sleep $stime;
     display lights_on && sleep $stime
}
	
clear;
yes | while read i;
do animation;
done;