Ruby scripts to search a vendor name from a MAC address.

search_mac.rb

require 'open-uri'

class SearchMac
  URL_OUI = "http://standards.ieee.org/develop/regauth/oui/oui.txt"

  def initialize
    @arg = ARGV[0]
  end

  def exec_main
    begin
      open(URL_OUI) do |f|
        f.each do |line|
          if /\s*(.*?)\s*\(hex\)\t*(.*?)\n/ =~ line
            puts "#{$1}: #{$2}" if @arg == $1
          end
        end
      end
    rescue => e
      STDERR.puts "[ERROR][#{self.class.name}.exec_main] #{e}"
      exit 1
    end
  end
end

SearchMac.new.exec_main