Autorotater for thinkpad x200 tablet under arch linux

gistfile1.sh

#!/bin/bash
# Working autorotate on thinkpad x200 tablet
rstate="0"
while [ true ] 
do
	react=`grep 0 -c /sys/devices/platform/thinkpad_acpi/hotkey_tablet_mode`
	if (( ($react == "1") && ($rstate=="1") )); then
	 /usr/bin/xrandr -o normal
	 xsetwacom set "Serial Wacom Tablet WACf008 stylus" Rotate none
 	 xsetwacom set "Serial Wacom Tablet WACf008 eraser" Rotate none
	 xsetwacom set "Serial Wacom Tablet WACf008 touch" Rotate none
	 rstate="0"
	fi
	if (( ($react != "1") && (rstate == "0") )); then
	 /usr/bin/xrandr -o right                                 
	 xsetwacom set "Serial Wacom Tablet WACf008 stylus" Rotate cw
	 xsetwacom set "Serial Wacom Tablet WACf008 eraser" Rotate cw
	 xsetwacom set "Serial Wacom Tablet WACf008 touch" Rotate cw
	 rstate="1"
	fi
 sleep 1
done