#!/bin/bash

SERIAL=/dev/tty.USA19QWfd31P1.1
echo -ne "7" > $SERIAL
sleep 1
echo -ne "10000000\r" > $SERIAL
sleep 1
printf "%08x\r" `stat -f %z image` > $SERIAL
sleep 1
cat image > $SERIAL
sleep 1
echo -ne 5 > $SERIAL
sleep 1
echo 10000000 > $SERIAL