The hypothetical commands <code>show w</code> and <code>show c</code> should show the appropriate parts of the General Public License. Of course, your program’s commands might be different; for a GUI interface, you would use an “about box”.</p>
<p>You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see &lt;<a href="http://www.gnu.org/