You must have hugo and gulp installed. Create a new folder and enter on it.
hugo new site .
git init
git submodule add https://github.com/LeeU1911/hugo-ecommerce-theme.git themes/hugo-ecommerce-theme
cp ./themes/hugo-ecommerce-theme/exampleSite/* .
sudo npm install gulp gulp-concat gulp-rename gulp-uglify gulp-less gulp-minify-css gulp-imagemin gulp-gzip gulp-htmlmin
gulp
hugo server