1- Install all prerequisites. 2- Install the jekyll and bundler gems (to avoid installing globally see Gem Isolation)
gem install jekyll bundler
3- Create a new Jekyll site at ./myblog.
jekyll new myblog
4- Change into your new directory.
cd myblog
5- Build the site and make it available on a local server.
bundle exec jekyll serve
6- Browse to your local host (http://localhost:4000/)