KMobileLock
From ThorstensHome
A tool that switches on your screensaver as soon as your mobile phone is away from your computer and switches off your screensaver as soon as the phone is near to the computer. With other words: Never type your password again - you go away and your screen is locked. You come back and your screen unlocks. This is because you carry your mobile phone with you and your computer detects via bluetooth how near it is.
This is for KDE only.
#!/bin/bash
hcitool cc 00:16:4E:62:BE:31
while true
do
sleep 1
if (( $(hcitool lq 00:16:4E:62:BE:31|awk '{print $3;}') < 250 ));
then dcop kdesktop KScreensaverIface lock;
else
dcop kdesktop KScreensaverIface quit
hcitool cc 00:16:4E:62:BE:31
fi
done
