Blame Manuals/Docbook/Licenses/Gpl/section-3.docbook

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<section>
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    <title>How to Apply These Terms to Your New Programs</title>
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    <para>If you develop a new program, and you want it to be of the
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    greatest possible use to the public, the best way to achieve this
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    is to make it free software which everyone can redistribute and
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    change under these terms.</para>
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    <para>To do so, attach the following notices to the program.  It
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    is safest to attach them to the start of each source file to most
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    effectively convey the exclusion of warranty; and each file should
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    have at least the <quote>copyright</quote> line and a pointer to where the
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    full notice is found.</para>
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    <programlisting>
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    <one line to give the program's name and a brief idea of what it does.>
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    Copyright (C) 19yy  <name of author>
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
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    along with this program; if not, write to the Free Software
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    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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    </programlisting>
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    <para>Also add information on how to contact you by electronic and
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    paper mail.</para>
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    <para>If the program is interactive, make it output a short notice
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    like this when it starts in an interactive mode:</para>
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    <programlisting>
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    Gnomovision version 69, Copyright (C) 19yy name of author
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    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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    This is free software, and you are welcome to redistribute it
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    under certain conditions; type `show c' for details.
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    </programlisting>
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    <para>The hypothetical commands `show w' and `show c' should show
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    the appropriate parts of the General Public License.  Of course,
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    the commands you use may be called something other than `show w'
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    and `show c'; they could even be mouse-clicks or menu
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    items–whatever suits your program.</para>
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    <para>You should also get your employer (if you work as a
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    programmer) or your school, if any, to sign a <quote>copyright
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    disclaimer</quote> for the program, if necessary.  Here is a sample;
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    alter the names:</para>
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    <programlisting>
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    Yoyodyne, Inc., hereby disclaims all copyright interest in the program
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    `Gnomovision' (which makes passes at compilers) written by James Hacker.
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    <signature of Ty Coon>, 1 April 1989
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    Ty Coon, President of Vice
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    </programlisting>
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    <para>This General Public License does not permit incorporating
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    your program into proprietary programs.  If your program is a
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    subroutine library, you may consider it more useful to permit
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    linking proprietary applications with the library.  If this is
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    what you want to do, use the GNU Library General Public License
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    instead of this License.</para>
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</section>