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#!/bin/bash
if [ -z "$@" ] || ([ "$1" != "+" ] && [ "$1" != "-" ]); then
echo "Expected + or - as argument!"
exit 1
fi
# Percentage change depending on brightness
info=$(brightnessctl -m i | cut -d , -f 4)
info=${info::-1}
change=5
if [ "$info" -ge 70 ]; then
change=10
fi
# Brightness change
if [ "$1" == "+" ]; then
brightnessctl -q set "+${change}%"
elif [ "$info" -gt 5 ]; then # don't allow brightness to decrease to 0%
brightnessctl -q set "${change}%-"
fi
# Notification for brightness
info=$(brightnessctl -m i)
perbright=$(echo $info | cut -d , -f 4)
notify-send "$(echo $info | cut -d , -f 1)
Brightness: $perbright" -t 1000 -h int:value:$perbright -h string:x-canonical-private-synchronous:anything -h string:x-canonical-private-synchronous:anything
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