Get notification on Mac for low battery

battery_notification.sh

#!/bin/bash

# Add this function to cronjob
# This will it every 2 minutes: "2 * * * * /path/to/script"

# Define a function to show the notification on MacOS
function notify() {
	if [ $# -eq 3 ]; then
		osascript -e "display notification \"$2\" with title \"$1\" sound name \"$3\""
	fi
}

# Get the battery data and call notify function. Sound can be selected from /System/Library/Sounds
battery_percentage=$(pmset -g batt | grep -Eo "\d+%" | cut -d% -f1)
if (( battery_percentage > 10 )); then
	notify "Low Battery" "Battery below 10%. Run for the charger!" "Tink.aiff"
fi