remote console using druby

client.rb

require 'drb'
require 'readline'

DRb.start_service
server = DRbObject.new_with_uri("druby://localhost:9898")

while buf = Readline.readline('> ', true)
  buf = buf.strip
  case buf
  when 'exit'
    exit
  else
    begin
      puts " => #{server.eval(buf).inspect}" 
    rescue => e
      puts e.message
    end
  end
end

server.rb

require "drb/drb"

class Evaluator
  def initialize(i)
    @i = i
  end

  def eval(*args)
    @i.instance_eval(*args)
  end
end

DRb.start_service('druby://localhost:9898', Evaluator.new(self))
DRb.thread.join