Copying
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GNU Wget is licensed under the GNU GPL, which makes it "free
software".
Please note that "free" in "free software" refers to liberty, not
price. As some GNU project advocates like to point out, think of "free
speech" rather than "free beer". The exact and legally binding
distribution terms are spelled out below; in short, you have the right
(freedom) to run and change Wget and distribute it to other people, and
even--if you want--charge money for doing either. The important
restriction is that you have to grant your recipients the same rights
and impose the same restrictions.
This method of licensing software is also known as "open source"
because, among other things, it makes sure that all recipients will
receive the source code along with the program, and be able to improve
it. The GNU project prefers the term "free software" for reasons
outlined at
<http://www.gnu.org/philosophy/free-software-for-freedom.html>.
The exact license terms are defined by this paragraph and the GNU
General Public License it refers to:
GNU Wget is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GNU Wget is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
A copy of the GNU General Public License is included as part of
this manual; if you did not receive it, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
In addition to this, this manual is free in the same sense:
Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License,
Version 1.1 or any later version published by the Free Software
Foundation; with the Invariant Sections being "GNU General Public
License" and "GNU Free Documentation License", with no Front-Cover
Texts, and with no Back-Cover Texts. A copy of the license is
included in the section entitled "GNU Free Documentation License".
The full texts of the GNU General Public License and of the GNU Free
Documentation License are available below.