#!/bin/bash

kb="/dev/input/by-path/platform-i8042-serio-0-event-kbd" #keyboard device
logfile="/tmp/bs.log"

#start loggin keystrokes
cat "$kb" | od -i > "$logfile" &

while [ 1 ]
do

	#Get number of times BackSpace has been pressed
	let x="$(tail -n 600 "$logfile"|awk '{print $5}'|grep "^14$"|wc -l)" 
	
	echo "Check keystroke log."

	if [ "$x" -gt "20" ]
	then
		echo "BackSpace has been press to many times in the last 100 keystrokes"
		echo "Are you Drunk?"|wall 
		sleep 1m 
	fi
	sleep 10

done