Create a set of PNG's to create a GIF

png_maker

#!/bin/bash

set -e

app=$1

if [ $2 ]; then
    window=$2
else
    window=1
fi

window_id=$(osascript -e "tell app \"$app\" to id of window $window")

echo "Starting screen capturing with these settings..."
echo "App:          $app"
echo "Window Number $window"
echo "Window ID     $window_id"
echo "Ctrl-C to exit, or wait to continue"
sleep 4

for i in {1..9999}; do
	echo “taking screen shot $i”;
    screencapture -o -l $window_id -x ~/Movies/gifs/$app_$i.png;
	sleep 0.2;
done