How to run Jekyll on Ubuntu Linux

Install prerequisites

sudo apt-get install ruby-full build-essential zlib1g-dev
echo '# Install Ruby Gems to ~/gems' >> ~/.bashrc
echo 'export GEM_HOME="$HOME/gems"' >> ~/.bashrc
echo 'export PATH="$HOME/gems/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc
gem install jekyll bundler

Quickstart instructions to set up a site

cd into web root directory

cd root

Run jekyll serve to test the site locally

jekyll serve

If there is an error you may need to install webrick bundle add webrick