How to get a start on ruby on rails ?

Can you please recommend me good tutorial on ruby on rails ? Actually I'm looking forward to get into a Ruby on Rails project for Web/Desktop Applications development .
Please help me out !

Can you please recommend me good tutorial on ruby on rails ? Actually I'm looking forward to get into a Ruby on Rails project for Web/Desktop Applications development .
Please help me out !
Ruby on rail is well known as RoR. It is a web application framework. You should take a start up by accessing its site http://rubyonrails.org/ Here are the instructions to be followed http://rubyonrails.org. Do follow it. First two steps are downloading phase.
The third step: I just open command prompt and type a command arbitrary. ‘ gem install rails’
Further I entered commands and followed those procedures which with, I have been done many times: folder name: Dania1.
Open browser http://localhost:3000/. http://localhost:3000/greeting_dania1/helloworld
The following screen shot of my own system represents the initial template of the Dania1 app.
This is program loading. In the second picture you can see how dania1application is loaded into web browser.