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#!/usr/bin/python3
import subprocess
backlight_dir = '/sys/class/backlight/intel_backlight/'
brightness_file = 'brightness'
max_brightness_file = 'max_brightness'
brightness = int(open(backlight_dir + brightness_file).read())
max_brightness = int(open(backlight_dir + max_brightness_file).read())
ratio = (brightness / max_brightness)
brightness = ratio * 100
if brightness > 6:
subprocess.call("xbacklight -set {}".format(brightness - 5), shell=True)
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