GNU Midnight Commander (also referred to as MC) is a user shell much
like the (in)famous Norton Commander with text-mode full-screen
interface. It can be run on the OS console, in xterm and other
GNU Midnight Commander allows you to manage files while making most of
your screen and giving you a clear representation of the filesystem, yet
it's simple enough to be run over a telnet or ssh session.
MC needs several other programs for its various extfs extensions, e.g.
isoinfo (from mkisofs) or xorriso for the iso:// extension.