
Beginner’s Guide | 7
Introduction
This is the Title of the Book, eMatter Edition
Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.
is the GNU project’s well-known General Public License, also known as the GPL
or “copyleft,” invented and popularized by the Free Software Foundation (FSF).
The FSF, founded by Richard Stallman, is a phenomenon that many people might
believe to be impossible if it did not exist. (The same goes for Linux, in fact—15
years ago, who would have imagined a robust operating system developed by
collaborators over the Internet and made freely redistributable?) One of the most
popular editors on Unix, GNU Emacs, comes from the FSF. So do gcc and g++ (C
and C++ compilers), which for a while set the standard in the industry for optimi-
zation and the creation of fast code. One of the most ambitious projects within
GNU is the GNOME desktop, which encompasses several useful general-purpose
libraries and applications that use these libraries to provide consistent behavior
and interoperability.
Dedicated to the sharing of software, the FSF provides all its code and documen-
tation on the Internet and allows anyone with a whim for enhancements to alter
the source code. One of its projects is the Debian distribution of Linux.
To prevent hoarding, the FSF requires that the source code for all enhancements
be distributed under the same GPL that it uses. This encourages