Helpful Resources

Git

• GitHub: The on-line repository hosting service of choice for this course.
• Git Documentation: A variety of documentation from the official Git site, including the Git Reference Manual.
• Git Cheat Sheet: A brief listing of common Git commands and what they do. There is also this alternative version that I don't like quite as well.
• Pro Git by Scott Chacon: A free on-line book on Git by a developer at GitHub.
• Introduction to Git with Scott Chacon: A longish video (>80 min) that presents a lot of the material in the Pro Git book.
• Github Tutorial For Beginners: A short (<20 min), gentle video introduction to GitHub.
• Learn Git Branching: A visual and interactive tutorial for learning Git.
• Git from the Inside Out: A longish video (>45 min) on Git's technical inner workings.
• GitKraken: A good tool for visualizing the state of a repository
• Feature Branch Workflow: A tutorial on how to do the titular workflow, which involves topic branches and pull requests.

HTML

• W3Schools' HTML Tutorial
  • HTML Introduction
  • HTML Basic
  • HTML Elements
  • HTML Attributes
  • HTML Headings
  • HTML Paragraphs
  • HTML Formatting
  • HTML Links
  • HTML Head
  • HTML Lists
  • HTML Forms

Ruby

• Ruby API Documentation (v2.3.3)
  • Core API
  • Standard Library API

Rails

• Ruby on Rails Guides (v5.0.1)
  • Model Basics
    • DB Migrations
    • Model Validations
    • Model Associations
    • Model Queries
  • View Basics
    • Form Helpers
  • Controller Basics
  • Routing Basics
  • Testing Basics
• Ruby on Rails API (v5.0.1)
  • Model (ActiveModel; ActiveRecord)
    • Model Validation Methods (e.g., validate)
    • Model Association Methods (e.g., has_many)
    • Model Finder Methods (e.g., find)
  • View (ActionView)
    • View Form Helper Methods (e.g., form_for)
    • View URL Helper Methods (e.g., link_to)
  • Controller (ActionController)
  • Routing (ActionDispatch)
    • Routing Methods (e.g., root)
  • Testing (ActiveSupport::Testing)
    • Testing Assertion Methods (e.g., assert_not)
• Rails Tutorial
• Attacking Ruby on Rails Applications: An article on attack paths and techniques for cracking RoR web apps

RVM

• RVM Homepage
• Common Tasks
  • Install a version of Ruby
  • Set the default version of Ruby
  • See what version of Ruby is currently selected
  • Create a gemset
  • Use a particular gemset
  • See what gemset is currently selected
  • Add settings to your project's Gemfile, so RVM will automatically select the correct Ruby version and gemset

UNIX Shell

• Codeacademy Course: Learn the Command Line