Ruby – the heart of Metasploit
Ruby is indeed the heart of the Metasploit framework. However, what exactly is Ruby? According to the official website, Ruby is a simple and powerful programming language. Yokihiru Matsumoto designed it in 1995. It is further defined as a dynamic, reflective, and general-purpose object-oriented programming (OOP) language with functions similar to Perl.
Tip
You can download Ruby for Windows/Linux from http://rubyinstaller.org/downloads/
You can refer to an excellent resource for learning Ruby practically at http://tryruby.org/levels/1/challenges/0
Creating your first Ruby program
Ruby is an easy-to-learn programming language. Now, let's start with the basics of Ruby. Remember that Ruby is a vast programming language. Covering all the capabilities of Ruby will push us beyond the scope of this book. Therefore, we will only stick to the essentials that are required in designing Metasploit modules.
Interacting with the Ruby shell
Ruby offers an interactive shell too....