Simple link checker

#!/usr/bin/env ruby
require 'net/https'
require 'uri'

@links = [
  "http://www.library.nd.edu/index.shtml",
  "http://library.nd.edu/index.shtml",
  "http://library.nd.edu"
]

@links.each do |url|
  uri  = URI.parse(url)
  http = Net::HTTP.new(uri.host, uri.port)
  request = Net::HTTP::Get.new(uri.request_uri)
  request.initialize_http_header({"User-Agent" => "Ruby Link-Checking Script"})

  response = http.request(request)
  puts "#{url}, #{response.code}"
end

see here for the inspiration