User's Guide

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this when it starts in an interactive mode:

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, the commands you use may be called something other than ‘show w’ and

‘show c’; they could even be mouse-clicks or menu items–whatever suits your program.

You should also get your employer (if you work as a programmer) or your school, if any, to sign a “copy-

right disclaimer” for the program, if necessary. Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program ‘Gnomovision’ (which makes pass-

es at compilers) written by James Hacker.

signature of Ty Coon, 1 April 1989 Ty Coon, President of Vice

This General Public License does not permit incorporating your program into proprietary programs. If

your program is a subroutine library, you may consider it more useful to permit linking proprietary appli-

cations with the library. If this is what you want to do, use the GNU Lesser General Public License instead

of this License.