ruby/bin/irb

#!/usr/bin/env ruby
#
#   irb.rb - interactive ruby
#   	$Release Version: 0.9.5 $
#   	$Revision$
#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
#

require "irb"

if __FILE__ == $0
  IRB.start(__FILE__)
else
  # check -e option
  if /^-e$/ =~ $0
    IRB.start(__FILE__)
  else
    IRB.setup(__FILE__)
  end
end