How to change root password on macOS Unix using terminal

To change the root password on macOS using the terminal, you can use the dscl command. Here are the steps:

1. Open the Terminal application on your macOS system.
2. Type the following command and press Enter:

3. You will be prompted to enter the new password for the root user.
4. Enter the new password and press Enter. You will not see any characters as you type the password.
5. Re-enter the new password to confirm it, and press Enter.
6. The password for the root user has been successfully changed.

Please note that changing the root password on macOS might have some security risks, so please be aware of them and take necessary precautions.

Also, remember to keep your system up to date, in order to have the latest security patches and bug fixes.