#!/bin/bash

check_urls () {
  urls_file_path=$(pwd)/urls.txt
  echo $urls_file_path

  if [ -f $urls_file_path ]
  then
    urls_list=$( cat $urls_file_path )
    while read LINE; do
      url_response_status=$(curl -Is $LINE | head -1)
      STATUS=$(curl -s -o /dev/null -w '%{http_code}' $LINE)
      echo $LINE $STATUS
      if [[ $STATUS =~ ^[0,4,5] ]]
      then
        echo Error
        break
      fi
    done < $urls_file_path
  else
    echo The file $urlf_file_path doesn\'t exists
  fi
}

check_urls