Updating your repository.
$ sudo apt-get updateInstalling Ruby, MySQL, sqlite and build-essential
$ sudo apt-get install ruby ri rdoc build-essential
$ sudo apt-get install mysql-server mysql-client libmysql-ruby
$ sudo apt-get install libsqlite3-0 libsqlite3-dev libsqlite-rubyInstalling gem package
$ sudo apt-get install gemInstalling Ruby on Rails
$ sudo gem install rails --include-dependenciesInstalling a few useful Ruby gems:
$ sudo gem install mongrel
$ sudo gem install capistrano
$ sudo gem install ruby-debug
$ sudo gem install image_science
$ sudo gem install rmagick
$ sudo gem install RedClothNow you may create your first rails app:
$ rails myappIf you want to use mysql instead of sqlite in your app:
$ rails myapp -d mysql