title: How to list all processes/services running on different ports
body: <p>Is there a command that lists all the services that are running on different ports of localhost?</p>
  <p>In my case, when I'm working on an Angular app, I may run it on localhost:4200, a React app on localhost:3000 and a Redis server on localhost:6379, etc.</p>
  <p>Is there a way of knowing if these are running and how can I kill/stop them?</p>