If you use WordPress multisite locally, you know how painful it can be to add a new entry to your Hosts file every time you start working on a new project. That’s why I chose to work with subdirectories instead of subdomains when I work locally.
Luckily, Konstantin came up with a simple code snippet to add as a plugin o your local instance, that will print a list of all subdomains for that instance. You only have to copy that list and paste it in your Hosts file.
Simple, quick, and a real time saver: you should bookmark this post!