Ruby Essentials

The Ruby Essentials book is currently under development and is scheduled for completion at the end of November 2007.

1. What is Ruby?
   • The History of Ruby
   • What is Ruby?
   • Why is Ruby so Popular?
2. Getting and Installing Ruby
   • Installing Ruby on Linux
   • Ruby on Red Hat Enterprise and Fedora Linux
   • Ruby on Ubuntu and Debian Linux
   • Ruby on Microsoft Windows
3. Simple Ruby Examples
   • The Most Basic Ruby Example
   • Executing Ruby from the Command Line
   • Interactive Ruby Execution
   • Executing Ruby from a File
   • Creating a Self Contained Ruby Executable on Linux or UNIX
   • Associating Ruby Files on Windows
4. Commenting Ruby Code
   • What is Exactly is Commenting
   • Single Line Ruby Comments
   • Comments on Lines of Code
   • Multi Line or Block Ruby Comments

• Understanding Ruby Variables
• Ruby Variable Scope
• Ruby Number Classes and Conversions
• Ruby Ranges
• Understanding Ruby Arrays
• Advanced Ruby Arrays
• Ruby Operators
• Ruby Operator Precedence
• Ruby Math Functions and Methods
• Understanding Ruby Logical Operators
• Ruby Object Oriented Programming
• Ruby Flow Control
• The Ruby case Statement
• Ruby While and Until Loops
• Looping with for and the Ruby Looping Methods
• Ruby Strings - Creation and Basics
• Ruby String Concatenation and Comparison
• Ruby String Replacement, Substitution and Insertion
• Ruby String Conversions
• Ruby File and Directory Handling