Simple phone-theft alarm shell script

Last week my phone was stolen (most probably through the same window you see in the photo). I've decided to write a small but effective phone-theft alarm shell script that keeps checking whether phone is still on and within bluetooth range.

What you need:

1. A Unix platform (tried this on Ubuntu, but this would probably work on other platforms. Maybe even Mac)
2. Ability to browse files on your phone via bluetooth
3. hcitool (if your OS supports bluetooth, you've probably got it)
4. sox (for the play command), or any other way to make noise from command line :)

Step 1: Install the script