require 'net/ftp'

@ftp_settings = {
  :site = "127.0.0.1",
  :username = "username",
  :password = "password"}

ftp = Net::FTP.new(@ftp_settings[:site], @ftp_settings[:username], @ftp_settings[:password])

unless ftp.closed?
  ftp.ls do |file|
    puts "#{file.split.last} is a directory." if file.include? " <DIR> "
    puts "#{file.split.last} is an ordinary file." if !file.include? " <DIR> "
  end
end