Ruby development environment setup on Mac OSX El Capitan

THE FIRST STEPS, EXECUTE IN ORDER!!

(copy and pasting commands is OK)

• Ensure you are working from an admin level system profile

• Download and Install atom https://atom.io/
• Welcome to your new home, the terminal, update ~/.bash_profile so you can see things properly in your terminal (color, directories and hidden files)

  echo 'alias ls="ls -FGaw"' >> ~/.bash_profile

• Install Xcode

• Install Xcode Command Line Tools

  xcode-select --install

• Verify Xcode

  xcode-select -p
  # looking for
  # /Applications/Xcode.app/Contents/Developer

• Install HomeBrew, aka Brew, http://brew.sh/

  /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  brew -v

• Install git

  brew install git
  git -v

• Install rbenv, https://github.com/rbenv/rbenv

  brew install rbenv
  rbenv init
  rbenv install -l
  rbenv --version

• Use rbenv to install ruby

  rbenv install 2.3
  ruby -v

• Set global ruby version

  mkdir ~/.rbenv
  echo '2.3' >> ~/.rbenv/version

• Install bundler

  gem install bundler
  gem list bundler

BASIC UNIX

• pwd print the location of the current working directory
• cd ../ change directory and move up one level
• cd ~/ cd directory from current to user’s home directory
• mkdir ~/unicorn_hunting create a directory in the home directory called ‘unicorn hunting’
• ls list the contents of the current directory
• ls -al list all the contents of current directory in a list
• touch unicorn.rb create file called ‘unicorn’ with the ‘.rb’ ruby file extension
• ruby unicorn.rb run the contents of the unicorn.rb file as ruby
• cmd k clear contents of current terminal window

Useful Mac OSX details

• Enable finder to show all hidden files

  defaults write com.apple.Finder AppleShowAllFiles YES
  killall Finder

• Install and use sizeup (paid) for window maximizing and docking, http://www.irradiatedsoftware.com/sizeup/