Running distros like Ubuntu and Arch

So I am not sure, but I heard there is a way to connect to distros, however when attempting to install, but it said permission denied, when running wget, what do I need to do to run a distro?

What are trying to learn? If its bash/shell scripting. It doesn’t really matter which distro you use.
Free version uses CentOS - but Ubuntu is available as part of “Root” feature. Check Root menu.