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dotfiles/.local/bin/backlight_notify

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#!/usr/bin/env sh
######################################################################
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# @author : swytch
# @file : backlight_notify
# @license : MIT
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# @created : Wednesday May 20, 2020 17:53:36 CEST
#
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# @description : send a notification with xbacklight value
######################################################################
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current=$(cat /sys/class/backlight/intel_backlight/brightness)
max=$(cat /sys/class/backlight/intel_backlight/max_brightness)
step=$(expr $max / 20)
level=$(expr $(expr $current / $step) \* 5)
dunstify -r 100001 -u "low" "Current xBacklight value :" "$level%"