Ruby installation and Operation _ruby Topics

Installation of Ruby

Pay attention.

1. OS X or Linux is better
2. Implementation of different versions: C + +, C, Java
3. This time C Ruby
   

Installation method

1. Linux or OS X has pre-installed
2. Package Manager (APT, yum, Brew), not the latest
3. Version control system: RVM (Rvm.io), rbenv
   

Rvm

1. View Ruby version
   

RVM list known

Installation

RVM Install 2.2.1

Help

RVM--help
User manual: Man RVM

Rbenv

1. Install with brew under OS X
   

Windows install via Rubyinstaller

Learning materials

Tools

Deploy platform Linux under

Common installation Method: source code compilation, step

1. Download and unzip the website
2. ./config
3. Make
4. Make install to the path
5. Ruby-v View Version
   

Ruby's Run

Two ways:

Interactive:

1. Use Ruby command: Ruby
2.irb:irb

Writing Program Files (. RB)

1. Save the program in a file and use the ruby command to

Vim hello.rb

puts "Hello world"

def Hello (name)
 puts "Hello #{name}"
End

Hello (' mac ')

Ruby Hello.rb

Ruby's Document System

RDOC: Document Generation Tool
Ri: Reading RDOC documents

RI Mina

ri--serve Browser Browse documentation//localhost:8214