title: Does npx look for globally installed packages?
body: <p>I am using Node.js 10.1.0 and npm 6.0.0.</p>
  
  <p>I have installed a package with <code>npm install -g example-package</code>, </p>
  
  <p>Will <code>npx</code> look for it? What about <code>npx -p example-package</code>, does it only look on npm registry?</p>