#!/bin/bash battery_level=$(acpi -b | grep -P -o -m1 "[0-9]+(?=%)") if [ $battery_level -le 5 ] then /usr/bin/notify-send "Battery level critical" "Battery level critically low, plug to avoid shutdown" --urgency=critical exit fi if [ $battery_level -le 15 ] then /usr/bin/notify-send "Battery low" "Battery level dropped under 15%" exit fi