twitter_stream.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'net/http'
require 'json'

http = Net::HTTP.new('stream.twitter.com', 80)
get = Net::HTTP::Get.new("/1/statuses/filter.json?track=awesome")

get.basic_auth ARGV[0], ARGV[1]

http.request(get) do |response|
  text = ""
  response.read_body do |chunk|
    chunk.each_byte do |c|
      if c == 10
        if text.length > 1
          begin
          json = JSON.parse(text)
          puts "#{json['user']['screen_name']}: #{json['text']}"
          rescue Exception => e
            puts "Unable to parse JSON:: #{e}"
          end
          text = ""
        end
          text = ""
      else
        text += c.chr
      end
    end
  end
end