#!/bin/sh

LO=1; HI=10

convert in.jpg in.ppm 
while [ $LO -le $HI ]
do
  echo -n  $LO " "
  LO=`expr $LO + 1`
  nr=`expr $LO + 100`
  ./fourier $LO in.ppm > $nr.ppm
done

convert 1??.ppm  animate.gif
rm *.ppm