To Create the hello Application

1. Select a directory to create a sample application. For example:

   /apps/jruby-apps

2. Create a Rails application called hello in that directory:

   cd /apps/jruby-apps

   jruby -S rails hello

   This command creates the hello directory, which contains a set of automatically-generated files and directories.

   The directories containing the files that you'll use the most are:

   • app: Contains your application code.

   • config: Contains configuration files, such as database.yml, which you use to configure a database.

   • public: Contains files and resources that need to be accessed directly rather than accessed through the Rails call stack. These include images and straight HTML files.