If the program is interactive, make it output a short notice like this whenit starts in an interactive mode:Gnomovision version 69, Copyright (C) year name of author Gnomovision comeswith ABSOLUTELY NO WARRANTY; for details type 'show w'. This is freesoftware, 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 appropriateparts of the General Public License. Of course, the commands you use may becalled something other than 'show w' and 'show c'; they could even bemouse-clicks or menu items--whatever suits your program.You should also get your employer (if you work as a programmer) or yourschool, if any, to sign a "copyright disclaimer" for the program, ifnecessary. Here is a sample; alter the names:Yoyodyne, Inc., hereby disclaims all copyright interest in the program'Gnomovision' (which makes passes at compilers) written by James Hacker.signature of Ty Coon, 1 April 1989Ty Coon, President of ViceThis General Public License does not permit incorporating your program intoproprietary programs. If your program is a subroutine library, you mayconsider it more useful to permit linking proprietary applications with thelibrary. If this is what you want to do, use the GNU Library General PublicLicense instead of this License.