-#!/usr/bin/ruby1.9.1
+#!/usr/bin/ruby
# $Id$
#
# Author:: Daigo Moriwaki
#
# Sample Command lines that isntall prerequires will work on Debian.
#
-# * Ruby 1.9.3 or 1.8.7
+# * Ruby 2.0.0 or later
#
-# $ sudo aptitude install ruby1.9.1
+# $ sudo aptitude install ruby
#
# == Run
#