A beautiful little script by my friend Brad Greco. It is awesome.

madness.sh

#!/bin/bash

# This program prints "This is madness!" in many colors. It is awesome.
# Author: Brad Greco
# Author URL: http://bgreco.net

j=1;
add=1;
for ((k=1; k<1000; k++)) do
  for ((i=30; i<38; i++)) do
    printf "\e[2K\e[$j""G\e[$i""mThis is madness!"
    sleep .1
    let "j=$j+$add"
    if [ $j -eq 65 ]
    then
      add=-1
    fi  
    if [ $j -eq 1 ] 
    then
      add=1
    fi  
  done
done