require 'net/http'

http = Net::HTTP.start('en.wikipedia.org', 80, "localhost", 80)
for c in 'A'..'Z'
  path = "/w/index.php?title=List_of_airports_by_ICAO_code:_#{c}&printable=yes"
  puts path
  File.open("z-list-#{c}.html", 'w') {|ofp|
    http.get(path) {|body|
      ofp.write body
      putc '.'
      STDOUT.flush
    }
  }
end
http.finish
puts "done"