A script that powers off your device when unplugged from the charger

poweroff_when_unplugged.sh

#!/system/bin/sh

# Written by nikp123 2017 :D

# Powers off android when you unplug it from the charger
# Make sure busybox is installed in order this to work

while :
do
	sleep 10
	a="$(dumpsys power | grep mIsPowered | cut -d'=' -f2)"
	if [ "$a" == "false" ]; then
		echo "Power loss [state=$a], checking in 5 seconds..."
		sleep 5
		b="$(dumpsys power | grep mIsPowered | cut -d'=' -f2)"
		if [ "$b" == "false" ]; then
			echo "Second power loss [state=$b], powering off..."
			# Give 30 seconds to power off device
			busybox poweroff -d 30 -f
		fi
	fi
done