s terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, your pro