Writing the best program would still be useless if people are clueless as to how it is managed. If you want to be successful in writing programs in Ruby, you should first learn how to run them. Two of the options available for running Ruby are: run commands as arguments that are passed to the ruby executable from a saved file, or from the Interactive Ruby shell; or, run Ruby programs as desktop and web applications. It is harder to make a decision regarding the method of sending the Ruby application to your users than the task of writing the Ruby program.