Hi! I'm learning linux and I'm looking for a site that has a usable unix/linux system. This way I can have access to a *nix system when I'm at work/school/library/etc so that I can practice commands or what have you. I've googled but I haven't found anything, though I have found hackerslab.org which may be what I'm looking for but it's down at this time. Ages ago I remember seeing lots of sites like this, but now that I'm interested in this, I can't find any. Thanks!