Jekyll requirements

Jekyll is a Ruby gem, so before installing Jekyll you have to install Ruby, I recommend that you install Ruby with RVM.

Installation

gem install jekyll bundler

Create a site

jekyll new example_blog

Export Ghost posts

Go to https://yoursite.com/ghost/settings/labs and download the Export JSON File, lets save it as mybackup.json

Install jekyll_ghost_importer

gem install jekyll_ghost_importer

Import posts with jekyll_ghost_importer

cd example_blog
jekyll_ghost_importer /path/to/mybackup.json

Generate and run Jekyll

Once posts have been imported, lets generate and run Jekyll

jekyll generate
jekyll serve --watch --livereload

The flag --watch monitors our files and restarts the server upon changes and --livereload refresh the browser.

Now we should be able to see our posts:

Configuration file: /home/franccesco/workspace/example_blog/_config.yml
            Source: /home/franccesco/workspace/example_blog
       Destination: /home/franccesco/workspace/example_blog/_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
                    done in 0.799 seconds.
 Auto-regeneration: enabled for '/home/franccesco/workspace/example_blog'
    Server address: http://127.0.0.1:4000/
LiveReload address: http://127.0.0.1:35729  Server running... press ctrl-c to stop.

Remember to edit _config.yml to edit your new blog's name and description.