#!/bin/bash for foo in $(seq 0 39) do img=$(printf "frames/%05d.pgm" $foo) bar=$(echo "$foo / 147.0" | bc -l) cx=$(echo "0.4 * c($foo)" | bc -l) cy=$(echo "0.4 * s($foo*2)" | bc -l) ./julia $img $cx $cy done echo ; echo "Encoding, please wait..." convert -delay 10 frames/*.pgm foo.gif