Setting up a new computer.

Here’s what you need to do.

Install Xcode Command Line Tools

1. Check whether you have Xcode installed

    ```
    $ xcode-select -p
    ```
   

2. Install Xcode Command Line Tools

    ```
    $ xcode-select --install
    ```
   

Configure git

Install Homebrew

Install Ruby

GPG

RVM

1. Install RVM

$ \curl -L https://get.rvm.io | bash -s stable

1. Restart the terminal

source ~/.rvm/scripts/rvm

1. Test RVM configuration

shell
type rvm | head -n 1

Install Ruby

1. $ rvm install ruby-2.4.1
   

2. Verify the version of Ruby

$ ruby -v

RubyGems

1. Show gems that need to be updated

$ gem outdated

1. Update gems

$ gem update

1. Install Bundler

$ gem install bundler

1. Install Nokogiri

$ gem install nokogiri

Reference

Installing Ruby on Rails for Mac

Jekyll

1. Install Jekyll

$ gem install jekyll

1. Update Jekyll

$ gem update jekyll