$ tar c tar: Cowardly refusing to create an empty archive Try 'tar --help' or 'tar --usage' for more information.
That's what the GNU implementation of
says. For comparison, Debian includes FreeBSD's
tar in the
package as the
$ bsdtar c bsdtar: no files or directories specified
In the text-only web browser
lynx (not to be confused with
links), if you press q
to quit, it asks
Are you sure you want to quit? (y)
Most keys quit the program, but if you decide not to quit and press
lynx shows the message
which goes away after a couple seconds allowing you to continue browsing.