intrusion detection

intruder.rb

puts "Starting Intruder"
sleep 3

while true do
  result = `ioreg -r -k AppleClamshellState -d 4 | grep AppleClamshellState  | head -1`
  lid_closed = result.split("=")[1].strip
  puts "Closed #{lid_closed}"

  if lid_closed == "No"
    sleep 2
    exec "say alert;imagesnap ~/Pictures/intruder.jpeg;open ~/Pictures/intruder.jpeg"
    exit
  end

  sleep 1
end