Ruby - Overview

Ruby is a pure object-oriented programming language. It was created in 1993 by Yukihiro Matsumoto of Japan.

You can find the name Yukihiro Matsumoto on the Ruby mailing list at Matsumoto is also known as Matz in the Ruby community.

Ruby is "A Programmer's Best Friend".

Ruby has features that are similar to those of Smalltalk, Perl, and Python. Perl, Python, and Smalltalk are scripting languages. Smalltalk is a true object-oriented language. Ruby, like Smalltalk, is a perfect object-oriented language. Using Ruby syntax is much easier than using Smalltalk syntax.

Features of Ruby

  • Ruby is an open-source and is freely available on the Web, but it is subject to a license.

  • Ruby is a general-purpose, interpreted programming language.

  • Ruby is a true object-oriented programming language.

  • Ruby is a server-side scripting language similar to Python and PERL.

  • Ruby can be used to write Common Gateway Interface (CGI) scripts.

  • Ruby can be embedded into Hypertext Markup Language (HTML).

  • Ruby has a clean and easy syntax that allows a new developer to learn very quickly and easily.

  • Ruby has similar syntax to that of many programming languages such as C++ and Perl.

  • Ruby is very much scalable and big programs written in Ruby are easily maintainable.

  • Ruby can be used for developing Internet and intranet applications.

  • Ruby can be installed in Windows and POSIX environments.

  • Ruby support many GUI tools such as Tcl/Tk, GTK, and OpenGL.

  • Ruby can easily be connected to DB2, MySQL, Oracle, and Sybase.

  • Ruby has a rich set of built-in functions, which can be used directly into Ruby scripts.

Tools You Will Need

For performing the examples discussed in this tutorial, you will need a latest computer like Intel Core i3 or i5 with a minimum of 2GB of RAM (4GB of RAM recommended). You also will need the following software −

  • Linux or Windows 95/98/2000/NT or Windows 7 operating system.

  • Apache 1.3.19-5 Web server.

  • Internet Explorer 5.0 or above Web browser.

  • Ruby 1.8.5

This tutorial will provide the necessary skills to create GUI, networking, and Web applications using Ruby. It also will talk about extending and embedding Ruby applications.

What is Next?

The next chapter guides you to where you can obtain Ruby and its documentation. Finally, it instructs you on how to install Ruby and prepare an environment to develop Ruby applications.