How to run Rails server and perform other commands from a Ruby script file.

sandbox.rb

#!/usr/bin/env ruby
 
# Put this file in /script/ directory.
 
require 'rails/commands/server'
   Rails::Server.new.tap { |server|
   APP_PATH = File.expand_path('../../config/application',  __FILE__)
   require APP_PATH
   Dir.chdir(Rails.application.root)
   server.start
}
 
puts "Your code which requires the server in action goes here..."