How to Toggle WiFi on and Off with a Keyboard Shortcut on Mac

Part 1 of 2:

Open Terminal. Copy paste this in: networksetup -listnetworkserviceorder.
Remember the number that shows the WiFi. Then, you can close Terminal and open Automator.
Choose a type for your document. Click on Quick Action and Choose.
Search for run shell script in the search bar on the left. Double click on it.
Make sure the top section is correct on the right: Workflow receives no input in any application.
Copy and paste the following script into the section of 'Run Shell Script,' substituting 'X' with any number that you found the WiFi port to be earlier. The script is networksetup -getairportpower enX .
Click on Run in the top right corner. See if your WiFi turns off. You might need to wait a few seconds. If it works, click on the X and save the action, and name it something obvious like 'WiFi Toggle.' Then, proceed to the next section.

Part 2 of 2:

Open System Preferences > Keyboard. At the top, click on Shortcuts.
Click on Services. Scroll to the very bottom until you find the action that you just created.
Click on the None to the right of the name. Then, click on Add Shortcut.
Type in your shortcut. You might use Ctrl+⌥ Opt+⌘ Cmd+W. Control Option Command W). Make sure the shortcut is not a common shortcut.
Test your shortcut. It should work!

Marvin Fry

Update 04 March 2020

You should read it