Ruby2

Ruby is an object-oriented interpreted language. Several interpreters exist, the main one being written in C. It natively supports threads, fibers and has an impressive amount of third-party libraries that enable it to cover a broad spectrum of requirements, from basic file processing to complex distributed computing servers.

Basics

Operations and control structures

Control structures

loop control

1 Basics 1.1 Development Environment 1.1.1 Linux & Unix 1.1.2 Windows 1.1.3 CPAN 1.2 Your first program 1.2.1 Code 1.2.2 Analysis 1.3 Variables & Data Types 1.3.1 Scalars 1.3.2 Arrays 1.3.2.1 Helper Functions 1.3.2.1.1 join() 1.3.2.1.2 split() 1.3.2.1.3 push() 1.3.2.1.4 pop() 1.3.2.1.5 unshift() 1.3.2.1.6 shift() 1.3.3 Hashes 1.3.3.1 Introduction 1.3.3.2 Helper Functions 1.3.3.2.1 each() 1.3.3.2.2 keys 1.3.4 References 1.3.4.1 Hash References 1.3.4.2 Callback References 1.3.5 Casting 1.4 Boolean Logic 1.4.1 Operators 1.4.1.1 Mathematical 1.4.1.2 Regular Expressions 1.4.2 Statements 1.4.2.1 if 1.4.2.2 unless 1.4.2.3 AND and OR 1.4.2.4 switch 1.4.2.5 Golfing 1.4.3 Helper Natives 1.4.3.1 exists 1.4.3.2 defined 1.4.3.3 undef 1.4.4 Bitwise Manipulations 1.4.4.1 AND 1.4.4.2 NOT 1.4.4.3 OR 1.4.4.4 XOR 1.4.4.5 Bit Shifting 1.4.4.6 Bit Rotation 1.5 Loops 1.5.1 While 1.5.2 Until 1.5.3 For 1.5.4 Foreach 1.6 User Input 1.6.1 Command Line Arguments 1.6.1.1 Getopt::Std 1.6.1.1.1 Code 1.6.1.1.2 Analysis 1.6.1.2 Getopt::Long 1.6.1.2.1 Code 1.6.1.2.2 Analysis 1.6.2 STDIN (Standard Input) 1.7 User-Defined Functions 2 Helpful Libraries 2.1 Throughput 2.1.1 Download 2.1.2 Usage 2.1.2.1 Config.pm 2.1.2.2 Log.pm 2.1.2.3 Server.pm