#!/bin/bash
while true
do
    echo 255 > /sys/class/leds/tpacpi::thinklight/brightness
    echo 0 > /sys/class/backlight/intel_backlight/brightness
    sleep 0.03
    echo 0 > /sys/class/leds/tpacpi::thinklight/brightness
    echo 3000 > /sys/class/backlight/intel_backlight/brightness
    sleep 0.03
done