random/bluetooth-toggle

#!/bin/bash

# Toggles bluetooth on a Linux system. Make sure that you have bluetoothctl installed.
# I use it with a shortcut.

DONGLE_MAC=$(bluetoothctl list | grep dongle | awk '{print $2}')
INTERNAL_MAC=$(bluetoothctl list | grep internal | awk '{print $2}')

if [ -z $DONGLE_MAC ]; then
    DEVICE_MAC=$INTERNAL_MAC
else
    DEVICE_MAC=$DONGLE_MAC
fi

if [ $(bluetoothctl show $DEVICE_MAC | grep Powered | grep -c yes) == 1 ]; then
	echo -e "select $DEVICE_MAC\npower off" | bluetoothctl
else
	if [ $(rfkill --output-all | grep bluetooth | grep -c blocked) != 0 ]; then
		rfkill unblock bluetooth
	fi
	echo -e "select $DEVICE_MAC\npower on" | bluetoothctl
fi

if ! [ -z $DONGLE_MAC ]; then
    sleep 0.5
	echo -e "select $INTERNAL_MAC\npower off" | bluetoothctl
fi