ARGV << '--help' if ARGV.empty? aliases = { "g" => "generate", "c" => "console", "s" => "server", "db" => "dbconsole" } command = ARGV.shift command = aliases[command] || command case command when 'generate', 'destroy', 'plugin', 'benchmarker', 'profiler' require APP_PATH Rails.application.require_environment! require "rails/commands/#{command}" when 'console' require 'rails/commands/console' require APP_PATH Rails.application.require_environment! Rails::Console.start(Rails.application) when 'server' require 'rails/commands/server' Rails::Server.new.tap { |server| require APP_PATH Dir.chdir(Rails.application.root) server.start } when 'dbconsole' require 'rails/commands/dbconsole' require APP_PATH Rails::DBConsole.start(Rails.application) when 'application', 'runner' require "rails/commands/#{command}" when 'new' puts "Can't initialize a new Rails application within the directory of another, please change to a non-Rails directory first.\n" puts "Type 'rails' for help." when '--version', '-v' ARGV.unshift '--version' require 'rails/commands/application' else puts "Error: Command not recognized" unless %w(-h --help).include?(command) puts <<-EOT Usage: rails COMMAND [ARGS] The most common rails commands are: generate Generate new code (short-cut alias: "g") console Start the Rails console (short-cut alias: "c") server Start the Rails server (short-cut alias: "s") dbconsole Start a console for the database specified in config/database.yml (short-cut alias: "db") new Create a new Rails application. "rails new my_app" creates a new application called MyApp in "./my_app" In addition to those, there are: application Generate the Rails application code destroy Undo code generated with "generate" benchmarker See how fast a piece of code runs profiler Get profile information from a piece of code plugin Install a plugin runner Run a piece of code in the application environment All commands can be run with -h for more information. EOT end