Terminate Process on a Port from Command Line

By  on  

Once a week I have to deal with a zombie process or try to start a process that's already running on its designated port. In most cases I use macOS's Activity Monitor to kill the process, which is time-consuming. What if we could just kill a process on a given port from command line? Well, we can!

To terminate a process on a given port, install kill-port and starting nuking those zombies via:

# yarn global add kill-port

# Kill processes on multiple ports
kill-port 6060 8000

If you want to programmatically kill a port that you want to ensure your app will run on, you can do that as well:

const kill = require('kill-port')

kill(6060, 'tcp')
      .then(console.log)
      .catch(console.log)

I look forward to incorporating this library into my Node.js sites so that I can clear the way for a given port and avoid zombie processes.

Recent Features

  • By
    Create a CSS Flipping Animation

    CSS animations are a lot of fun; the beauty of them is that through many simple properties, you can create anything from an elegant fade in to a WTF-Pixar-would-be-proud effect. One CSS effect somewhere in between is the CSS flip effect, whereby there's...

  • By
    Introducing MooTools Templated

    One major problem with creating UI components with the MooTools JavaScript framework is that there isn't a great way of allowing customization of template and ease of node creation. As of today, there are two ways of creating: new Element Madness The first way to create UI-driven...

Incredible Demos

  • By
    Image Reflection with jQuery and MooTools

    One subtle detail that can make a big difference on any web design is the use of image reflections. Using them too often can become obnoxious but using reflections on large, "masthead" images is a classy enhancement. Unfortunately creating image reflections within your...

  • By
    MooTools Clipboard Plugin

    The ability to place content into a user's clipboard can be extremely convenient for the user. Instead of clicking and dragging down what could be a lengthy document, the user can copy the contents of a specific area by a single click of a mouse.

Discussion

    Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!