You are not reading the latest stable version of this documentation. If you want up-to-date information, please have a look at master.
For Debian and Debian-based systems, such as Ubuntu, Mint, etc.
Install the Tor proxy service to your system. To do so, open your terminal and run the following command:
sudo apt update && sudo apt install tor
That’s it! Your Linux machine is now setup to natively use Tor.