Jekyll Part 11: Installing Jekyll On OSx

Welcome the continuing series on using Jekyll. In this tutorial we are going to setup your MAC (OSx) computer to be able to edit your blog on your computer.


Up to this point we have been using the Github web site to edit all of our files but the downside to this is that any chances you want to make show up live in your blog before you have had a chance to test them.

Instead, it is better if you can test out all of your changes and review your blog post before letting the world see them. It will also let you have draft post where you can see them locally but on github they will not be visible.

Section 1: Installing Software

We need to install XCode command line tools, nodejs and python pip.

Section 1.1: Installing NodeJs

Head over to and download the NodeJs Installer and run it. Take all of the defaults.

Section 1.2: Installing XCode Command Line Tools

Unfortunately to get the XCode command line tools, you first need to install XCode.

  1. Go the App Store
  2. Search for XCode
  3. Hit the Install Button

Once XCode is installed, open up a terminal windows (Application -> Other -> Terminal) and run the following command:

xcode-select --install

This will bring up a windows asking you to install the command line tools package that we need and just click the Install button.

Section 1.3: Installing Pygments Code Highlighter

	pip install Pygments

Section 1.4: Install Ruby Gems

sudo gem update --system 	
sudo gem install bundler

Section 2: Getting your Blog onto your computer

In this section, you will clone the blog repo from github and install jekyll.

  1. Open a terminal
  2. Create the directory ~/projects

     mkdir ~/projects
  3. cd into c:\projects

     cd ~/projects
  4. Clone your github blog repo to your local machine with the “git clone [Repo Name]” command. Below is the example if you were to clone the jekyll repo for this blog series.

     git clone  
  5. cd into the repo that you just cloned

     cd jekyllforblogseries
  6. Make sure that you have a GemFile with no file extension in the root of your repo with the following contents. Warning that Github Pages supports very few jekyll plugins. The jekyll-redirect-from is one of them.

     source ''
     gem 'github-pages'
     gem 'jekyll-redirect-from'
  7. From the jekyllforblogseries directory or your blogs directory, run the following command to install gems listed in the Gemfile.

     bundle install

Now we have jekyll installed. Time to test it out

Section 3: Testing Your Blog Works on Your Computer

Now that we have everything installed for jekyll it is time to test it out.

  1. From a command prompt in your blog repo directory run the following command to tell jekyll to build and run the web site locally

     jekyll serve 
  2. If it build successfully you will see something like this

    Jekyll Serve Success

  3. Now if you open up your browser and navigate to http://localhost:4000 you will see you blog.

However, by default your _config.yml file will be set for production which will cause any place that you have referenced the site.url to not working on your local machine. You don’t want to change your _config.yml file though for development since you will accidentally check it in at some point and break your blog. Instead we can tell jekyll to use multiple configuration files. When you load multiple files it will load them in order and then override any settings from a previously loaded config.

  1. Create a new file in the root of your repo called _configdev.yml
  2. In the _configdev.yml add the following lines to set the url, turn off disqus/google analytics and google search.

     # then add this to the url as well "/repository-name"
     url: http://localhost:4000
  3. If your jekyll serve is still running do a ctrl+c to stop it.
  4. Now run the following command to tell jekyll the config yml files to load

     jekyll serve --config _config.yml,_configdev.yml
  5. If it build successfully you will see something like this

    Jekyll Serve Success

  6. Now if you open up your browser and navigate to http://localhost:4000 you will see you blog and any place that reference site.url will be working..


Now you are ready to do all of your editing locally and test it out before the world gets to see it.

In our next lesson, I will show you how to create draft blog post that will only show on your local machine so that you don’t have to either clutter up your post directory with drafts or worry about accidentally publishing an unfinished article.

Series Post

Dialogue & Discussion

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