backlight

#!/bin/bash

WORKDIR=/home/chris/
LOGFILE=/tmp/backlight.log
KBDBACKLIGHT=`cat /sys/devices/platform/asus-nb-wmi/leds/asus::kbd_backlight/brightness`

HOUR=`date +%H`

echo "---------------->" | tee -a $LOGFILE
date | tee -a $LOGFILE

if [ $HOUR -lt 6 -o $HOUR -gt 19 ]; then
   echo "HOUR $HOUR must turn on backlight" | tee -a $LOGFILE
   BACKLIGHT=3
else
   echo "HOUR $HOUR must turn off the backlight" | tee -a $LOGFILE
   BACKLIGHT=0
fi

if [ $KBDBACKLIGHT -ne $BACKLIGHT ]; then
   echo "Current backlight $KBDBACKLIGHT is different from desired backlight $BACKLIGHT" | tee -a $LOGFILE
   echo $BACKLIGHT > /sys/devices/platform/asus-nb-wmi/leds/asus::kbd_backlight/brightness
else
   echo "Current backlight $KBDBACKLIGHT is the same from desired backlight $BACKLIGHT" | tee -a $LOGFILE
fi