Here are some Gulp commands which i want to list to help within work:

Remove Gulp

npm rm --global gulp

Install Gulp (v 4.0)

npm install --global gulp-cli

InstallĀ GulpĀ in your devDependencies (per each project)

npm install --save-dev gulp@next

Install Multi Gulp Packages in One Line

npm install --save-dev gulp-sass gulp-concat