brew install imagemagick FRAME_COUNT=59 for (( i = 0; i < ${FRAME_COUNT}; i++ )); do Y=$(expr ${i} \* 40) convert -crop 40x40+0+${Y} +repage bow_anim@2x.png bow_frame_${i}.png done convert -delay 0 -loop 0 -dispose previous bow_frame_*.png…