Linux is not command line, nor does it have a gui, nor does it look like anything.
No shit Sherlock. None of us here knew that. When we were referring to "Linux", we weren't referring to distros or anything. Naaaah, we must be all stupid, and instead have been referring specifically to the kernel.
Wake up numbnuts. Linux is the poster child of OSS, whether you like it or not. When people say "Linux" what they usually mean is the kernel, the utilities, X, and all the shit on top of that. Sometimes they even mean FreeBSD.