Instalation

Here's good atricle on how to install Ror: Install ruby on rails

Running ROR

host$ rails new Appname - you can use -d key and specify mysql or postgresql to be used as backend db
host$ cd Appname - change into Appname folder
host$ rails server - or short: rails s

Generating contollers, views etc

host$ cd Appname - change into Appname folder
host$ rails generate (controller|assets|generator|helper|integration_test|jbuilder|job|mailer|migration|model|resource|scaffold|scaffold_controller|task)
Controllername - will generate controller, helper, model etc.

# Generate database migration
host$ cd MyRubyApp1
host$ rails generate migration DoNothingYet
  invoke active_record
  create db/migrate/2015 - 20221103154246_do_nothing_yet.rb

# Generating model
host$ rails generate model User
   invoke active_record
   create db/migrate/2015 - 20221103200833_create_users.rb
   create app/models/user.rb    invoke test_unit
   create test/models/user_test.rb
   create test/fixtures/users.yml

Using rake tool