WP CLI

WP-CLI allows you to use the command line to manage your WordPress installations. Everything from updating plugins to deleting comments (and much more) can be done without using a web browser.

WP-CLI is installed on your server by default.

To use WP-CLI, SSH into your server as System User/password and run the command:

wp

Learn more about getting started with WP-CLI.

Note: While you don't need to be a full-on WordPress developer to use and benefit from WP-CLI, it is still definitely a tool that's only for more advanced users with at least some technical knowledge, such as the knowledge/ability to connect to your server via SSH.