-#!/usr/bin/ruby
+#!/usr/bin/ruby1.9.1
# $Id$
#
# Author:: Daigo Moriwaki
#
# Sample Command lines that isntall prerequires will work on Debian.
#
-# * Ruby 1.8.7
+# * Ruby 1.9.3 (including Rubygems)
#
-# $ sudo aptitude install ruby1.8
-#
-# * Rubygems
-#
-# $ sudo aptitude install rubygems
+# $ sudo aptitude install ruby1.9.1
#
# * Ruby bindings for the GNU Scientific Library (GSL[http://rb-gsl.rubyforge.org/])
#
-# $ sudo aptitude install libgsl-ruby1.8
+# $ sudo aptitude install ruby-gsl
#
# * RGL: {Ruby Graph Library}[http://rubyforge.org/projects/rgl/]
#
-# $ sudo gem install rgl
+# $ sudo gem1.9.1 install rgl
#
# == Examples
#