monitor.sh

#!/bin/bash

HDMI=$(xrandr | grep " connected "  |  grep "HDMI-0")
THUNDER=$(xrandr | grep " connected " | grep "^DP-1")
INTERNAL=$(xrandr | grep " connected " | grep "eDP-1")

# Terminate already running bar instances
killall -q polybar
# Wait until the processes have been shut down
while pgrep -x polybar >/dev/null; do sleep 1; done

if [ ${#HDMI} -gt 0 ]; then
	xrandr --output eDP-1-1 --auto --output HDMI-0 --auto --right-of eDP-1-1
	polybar -c /home/alberto/.config/polybar/config_hdmi_top main_bar &
elif [ ${#THUNDER} -gt 0 ]; then
	xrandr --output eDP-1-1 --auto --output DP-1 --auto --right-of eDP-1-1
	polybar -c /home/alberto/.config/polybar/config_hdmi_top main_bar &
elif [ ${#INTERNAL} ]; then
	xrandr --output HDMI-0 --off
	xrandr --output DP-1 --off
fi
polybar -c /home/alberto/.config/polybar/config_top main_bar &