Windows7 で Rails Tutorial (3rd ed.) の環境構築 ref: http://qiita.com/hashedhyphen/items/daef1fe67f261ce06671

file0.txt

mkdir C:\workspace
cd C:\workspace
rails _4.2.2_ new hello_app
cd hello_app

file1.txt

source 'https://rubygems.org'

gem 'rails',        '4.2.2'
gem 'sass-rails',   '5.0.2'
gem 'uglifier',     '2.5.3'
gem 'coffee-rails', '4.1.0'
gem 'jquery-rails', '4.0.3'
gem 'turbolinks',   '2.3.0'
gem 'jbuilder',     '2.2.3'
gem 'sdoc',         '0.4.0', group: :doc

group :development, :test do
  gem 'sqlite3',     '1.3.9'
  gem 'byebug',      '3.4.0'
#  gem 'web-console', '2.0.0.beta3'
  gem 'spring',      '1.1.3'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

file2.txt

bundle install
rails server