railties/lib/rails/commands/gem_help/USAGE
Usage:
rails COMMAND [options]
You must specify a command:
new Create a new Rails application. "rails new my_app" creates a
new application called MyApp in "./my_app"
plugin new Create a new Rails railtie or engine
All commands can be run with -h (or --help) for more information.
Inside a Rails application directory, some common commands are:
console Start the Rails console
server Start the Rails server
test Run tests except system tests