I didn't like this guide. Here's why: 1. "sudoo", not "sudo"? Are you for real? 2. it wasn't explained how to use this weird thing: "visudo" exactly. How do I save the content of the edited /etc/sudoers file, for example? For somebody coming from Windows, it's all very strange and the author just didn't care at all to do a good job, instead, he sent us all to Google… Well, thank you for nothing, pal.