dotfiles/config/.scripts/screen.sh

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#!/bin/sh
type xbacklight >/dev/null 2>&1 || { echo >&2 "I require xbacklight but it's not installed. Aborting."; exit 1; }
type dunstify >/dev/null 2>&1 || { echo >&2 "I require dunstify but it's not installed. Aborting."; exit 1; }
case $1 in
"up"*)
xbacklight -inc 10 &
currentBrightness=$(xbacklight | cut -d\. -f1);
dunstify -r 1 'brightness up'\ \($currentBrightness%\);
;;
"down"*)
xbacklight -dec 10 &
currentBrightness=$(xbacklight | cut -d\. -f1);
dunstify -r 1 'brightness down'\ \($currentBrightness%\);
;;
esac