Setting up Jekyll on Ubuntu 16.04

I recently set up Jekyll 3 on Ubuntu 16.04. The procedure is simple, works on Ubuntu 14.04, and perhaps also works on other versions of Ubuntu and other Linux distributions.

1. Create a directory for your Jekyll site. For instance, let us call it "mysite".

   
          mkdir mysite
       

2. Go to the site directory, and create a file called "Gemfile". The file defines Ruby applications dependencies. Since Jekyll is a Ruby application. This file defines the dependencies for Jekyll. It is quite simple, and the following shell command will create the file with sufficient content.
   

   
          cd mysite
          echo "source 'https://rubygems.org'" > Gemfile
          echo "gem 'execjs'" >> Gemfile
          echo "gem 'therubyracer'" >> Gemfile
          echo "gem 'github-pages', group: :jekyll_plugins" >> Gemfile
       

3. Now install Ruby and other necessary packages.

   
          sudo apt-get install ruby ruby-dev ruby-bundler zlib1g-dev build-essential
       

   
   
   
4. Finally, install Jekyll and its dependencies. On the site directory where Gemfile is, do the following,
   

   
          bundle install
       

5. To build the Jekyll site, do the following on the site directory,

   
          bundle exec jekyll build
       

6. You can serve the site by the following command,

   
          bundle exec jekyll serve --host=127.0.0.1 --port=4000