dotfiles/bin/bin/battery_notify

#!/bin/sh

while true; do
    acpi | grep Discharging
    if [ "$?" -eq 0 ]; then
        battery_level=`acpi -b | grep -P -o '[0-9]+(?=%)'`
        if [ $battery_level -le 5 ]; then
            notify-send "Battery low" "Battery level is ${battery_level}%!"
            sleep 300
        fi
    fi
    sleep 60
done