Developed on macOS, the bash script you are going to read about is born from the need to automate some of the tasks a plugin developer has to routinely do to publish plugin updates on WordPress.org.

In the WordPress jargon a Drop-in Plugin is a PHP script that replaces a functionality of WordPress, somehow becoming part of the core. In fact these special plugins don’t need to be activated to be loaded, they just have to be dropped in the `wp-content` folder.