View source for Ruby Essentials

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

# [[What is Ruby?]]
#* [[What is Ruby?|The History of Ruby]]
#* [[What is Ruby?|What is Ruby?]]
#* [[What is Ruby?|Why is Ruby so Popular?]]<br><br>
# [[Getting and Installing Ruby]]
#* [[Getting and Installing Ruby|Installing Ruby on Linux]]
#* [[Getting and Installing Ruby|Ruby on Red Hat Enterprise and Fedora Linux]]
#* [[Getting and Installing Ruby|Ruby on Ubuntu and Debian Linux]]
#* [[Getting and Installing Ruby|Ruby on Microsoft Windows]]<br><br>
# [[Simple Ruby Examples]]
#* [[Simple Ruby Examples|The Most Basic Ruby Example]]
#* [[Simple Ruby Examples|Executing Ruby from the Command Line]]
#* [[Simple Ruby Examples|Interactive Ruby Execution]]
#* [[Simple Ruby Examples|Executing Ruby from a File]]
#* [[Simple Ruby Examples|Creating a Self Contained Ruby Executable on Linux or UNIX]]
#* [[Simple Ruby Examples|Associating Ruby Files on Windows]]<br><br>
# [[Commenting Ruby Code]]
#* [[Commenting Ruby Code|What is Exactly is Commenting]]
#* [[Commenting Ruby Code|Single Line Ruby Comments]]
#* [[Commenting Ruby Code|Comments on Lines of Code]]
#* [[Commenting Ruby Code|Multi Line or Block Ruby Comments]]<br><br>
# [[Understanding Ruby Variables]]
#* [[Understanding Ruby Variables|Ruby Constants]]
#* [[Understanding Ruby Variables|Ruby and Variable Dynamic Typing]]
#* [[Understanding Ruby Variables|Declaring a Variable]]
#* [[Understanding Ruby Variables|Identifying a Ruby Variable Type]]
#* [[Understanding Ruby Variables|Changing Variable Type]]
#* [[Understanding Ruby Variables|Converting Variable Values]]<br><br>
# [[Ruby Variable Scope]]
#* [[Ruby Variable Scope|What is Variable Scope?]]
#* [[Ruby Variable Scope|Detecting the Scope of a Ruby Variable]]
#* [[Ruby Variable Scope|Ruby Local Variables]]
#* [[Ruby Variable Scope|Ruby Global Variables]]
#* [[Ruby Variable Scope|Ruby Class Variables]]
#* [[Ruby Variable Scope|Ruby Instance Variables]]
#* [[Ruby Variable Scope|Ruby Constant Scope]]<br><br>
# [[Ruby Number Classes and Conversions]]
#* [[Ruby Number Classes and Conversions|Ruby Number Classes]]
#* [[Ruby Number Classes and Conversions|Converting Numbers in Ruby]]<br><br>
# [[Ruby Methods]]<br><br>
# [[Ruby Ranges]]
#* [[Ruby Ranges|Ruby Sequence Ranges]]
#* [[Ruby Ranges|Using Range Methods]]
#* [[Ruby Ranges|Ruby Ranges as Conditional Expressions]]
#* [[Ruby Ranges|Ruby Range Intervals]]
#* [[Ruby Ranges|Ranges in case Statements]]<br><br>
# [[Understanding Ruby Arrays]]
#* [[Understanding Ruby Arrays|What is a Ruby Array]]
#* [[Understanding Ruby Arrays|How to Create a Ruby Array]]
#* [[Understanding Ruby Arrays|Populating an Array with Data]]
#* [[Understanding Ruby Arrays|Finding Out Information About a Ruby Array]]
#* [[Understanding Ruby Arrays|Accessing Array Elements]]
#* [[Understanding Ruby Arrays|Finding the Index of an Element]]<br><br>
# [[Advanced Ruby Arrays]]
#* [[Advanced Ruby Arrays|Combining Ruby Arrays]]
#* [[Advanced Ruby Arrays|Intersection, Union and Difference]]
#* [[Advanced Ruby Arrays|Identifying Unique Array Elements]]
#* [[Advanced Ruby Arrays|Pushing and Popping Array Elements]]
#* [[Advanced Ruby Arrays|Ruby Array Comparisons]]
#* [[Advanced Ruby Arrays|Modifying Arrays]]
#* [[Advanced Ruby Arrays|Deleting Array Elements]]
#* [[Advanced Ruby Arrays|Sorting Arrays]]<br><br>
# [[Ruby Operators]]
#* [[Ruby Operators|The Anatomy of a Ruby Operation]]
#* [[Ruby Operators|Performing Ruby Arithmetic using Operators]]
#* [[Ruby Operators|Ruby Assignment Operators]]
#* [[Ruby Operators|Parallel Assignment]]
#* [[Ruby Operators|Ruby Comparison Operators]]
#* [[Ruby Operators|Ruby Bitwise Operators]]<br><br>
# [[Ruby Operator Precedence]]
#* [[Ruby Operator Precedence|An Example of Ruby Operator Precedence]]<br><br>
# [[Ruby Math Functions and Methods]]
#* [[Ruby Math Functions and Methods|Ruby Math Constants]]
#* [[Ruby Math Functions and Methods|Ruby Math Methods]]
#* [[Ruby Math Functions and Methods|Some Examples]]<br><br>
# [[Understanding Ruby Logical Operators]]<br><br>
# [[Ruby Object Oriented Programming]]
#* [[Ruby Object Oriented Programming|What is an Object?]]
#* [[Ruby Object Oriented Programming|What is a Class?]]
#* [[Ruby Object Oriented Programming|Defining a Ruby Class]]
#* [[Ruby Object Oriented Programming|Creating an Object from a Class]]
#* [[Ruby Object Oriented Programming|Instance Variables and Accessor Methods]]
#* [[Ruby Object Oriented Programming|Ruby Class Variables]]
#* [[Ruby Object Oriented Programming|Instance Methods]]
#* [[Ruby Object Oriented Programming|Ruby Class Inheritance]]<br><br>
# [[Ruby Flow Control]]
#* [[Ruby Flow Control|The Ruby if Statement]]
#* [[Ruby Flow Control|Using else and elsif Constructs]]
#* [[Ruby Flow Control|The Ruby Ternary Operator]]<br><br>
# [[The Ruby case Statement]]
#* [[The Ruby case Statement|Number Ranges and the case statement]]<br><br>
# [[Ruby While and Until Loops]]
#* [[Ruby While and Until Loops|The Ruby While Loop]]
#* [[Ruby While and Until Loops|Breaking from While Loops]]
#* [[Ruby While and Until Loops|unless and until]]<br><br>
# [[Looping with for and the Ruby Looping Methods]]
#* [[Looping with for and the Ruby Looping Methods|The Ruby for Loop]]
#* [[Looping with for and the Ruby Looping Methods|The Ruby times Method]]
#* [[Looping with for and the Ruby Looping Methods|The Ruby upto Method]]
#* [[Looping with for and the Ruby Looping Methods|The Ruby downto Method]]<br><br>
# [[Ruby Strings - Creation and Basics]]
#* [[Ruby Strings - Creation and Basics|Creating Strings in Ruby]]
#* [[Ruby Strings - Creation and Basics|Quoting Ruby Strings]]
#* [[Ruby Strings - Creation and Basics|General Delimited Strings]]
#* [[Ruby Strings - Creation and Basics|Ruby Here Documents]]
#* [[Ruby Strings - Creation and Basics|Getting Information About String Objects]]<br><br>
# [[Ruby String Concatenation and Comparison]]
#* [[Ruby String Concatenation and Comparison|Concatenating Strings in Ruby]]
#* [[Ruby String Concatenation and Comparison|Freezing a Ruby String]]
#* [[Ruby String Concatenation and Comparison|Accessing String Elements]]
#* [[Ruby String Concatenation and Comparison|Comparing Ruby Strings]]
#* [[Ruby String Concatenation and Comparison|Case Insensitive String Comparisons]]<br><br>
# [[Ruby String Replacement, Substitution and Insertion]]
#* [[Ruby String Replacement, Substitution and Insertion|Changing a Section of a String]]
#* [[Ruby String Replacement, Substitution and Insertion|Ruby String Substitution]]
#* [[Ruby String Replacement, Substitution and Insertion|Repeating Ruby Strings]]
#* [[Ruby String Replacement, Substitution and Insertion|Inserting Text Into a Ruby String]]
#* [[Ruby String Replacement, Substitution and Insertion|Ruby chomp and chop Methods]]
#* [[Ruby String Replacement, Substitution and Insertion|Reversing the Characters in a String]]<br><br>
# [[Ruby String Conversions]]
#* [[Ruby String Conversions|Converting a Ruby String to an Array]]
#* [[Ruby String Conversions|Changing the Case of a Ruby String]]
#* [[Ruby String Conversions|Performing String Conversions]]<br><br>
# [[Ruby Directory Handling]]
#* [[Ruby Directory Handling|Changing Directory in Ruby]]
#* [[Ruby Directory Handling|Creating New Directories]]
#* [[Ruby Directory Handling|Directory Listings in Ruby]]<br><br>
# [[Working with Files in Ruby]]
#* [[Working with Files in Ruby|Creating a New File with Ruby]]
#* [[Working with Files in Ruby|Opening Existing Files]]
#* [[Working with Files in Ruby|Renaming and Deleting Files in Ruby]]
#* [[Working with Files in Ruby|Getting Information About Files]]
#* [[Working with Files in Ruby|Reading and Writing Files]]