npm commands -- gulp specific

-g //this means global
--save-dev // save to the davDependencies in package.json
--save // save to the Dependencies in package.json

//find all global packages
npm list -g --depth=0

//Install packages for a specific project locally. Install as dev dependency.
npm install --save-dev package-name

//install gulp and bower at the same time..
npm install –g gulp bower

//install only gulp
npm install –g gulp

//installs gulp to a local project as a dev dependency.
npm install gulp --save-dev
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JSHint is a JavaScript Code Analysis tool. It will detect errors and potential problems in js code. You can also custom configure rules.