copy and paste in ruby console

irbrc.rb

class String
  def copy
    IO.popen('pbcopy', 'r+'){|c| c.print(self) }
    puts 'copied'
    self
  end
end

def self.copy(*args)
  IO.popen('pbcopy', 'r+'){|c| c.print(*args) }
  puts 'coppied'
end

def self.paste
  `pbpaste`.chomp
end

def self.eval_clipboard
  eval(paste)
end

# Clear the screen
def self.clear
  system 'clear'
end