#!/bin/sh
for i in $(ls -d */);
do
  if curl --output /dev/null --silent --head --fail $(cat $i/default.nix | grep "backgroundUrl" | cut -d'"' -f 2); then
    echo "$i background successfully downloads";
  else
    echo -e "\033[0;31m$i background download fails\033[0m"
fi
done
