$ cd
$ git clone git://github.com/sstephenson/rbenv.git .rbenv
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
$ source ~/.bash_profile
$ rbenv install 1.9.3-p194
$ rbenv rehash
$ git clone git://github.com/imathis/octopress.git octopress
$ cd octopress 
$ gem install bundler
$ rbenv rehash 
$ bundle install
$ rake install

$ rake generate
$ rake preview