#!/bin/sh
wall="$HOME/var/tmp/wall.jpg"
res=$(xdpyinfo)
if [ $? -eq 0 ]; then
	res=$(echo "$res" | awk '/dimensions:/{print $2}')
else
	echo "ERROR: $res"
	exit 1
fi
wget -O "$wall" "https://source.unsplash.com/$res/?tunnel,architecture" && feh --no-fehbg --bg-fill "$wall"