No matter what distro you use, all of the basic commands ARE the same. ls, cd, mkdir, rmdir, etc. The main difference between distros, aside from minor kernel tweaking, and not including BSD branches, is usually the way they manage packages. For example Debian uses apt, Suse uses yum, Fedora/Redhat uses RPM, and Gentoo uses emerge/portage. There are linux tutorials all over the place on the web, but the best way is to just go in and start using it. If you ever need help with a command, just type a "man <command>" and it will show you the documentation for that program. Just be sure not to "rm -rf /" as root, and have a nice day.