Bash is under the GPL license - not GNU. Never has been GNU see source link -> http://www.opensource.apple.com/release/mac-os-x-106/
BTW - No part of MacOSX is distributed under GNU licensing...
Uh ? GNU is a project, not a license. GNU stands for GNU's Not Unix. It includes things like the GNU Libc, Bash, Emacs, a full OpenSTEP implementation known as GNUStep and various fileutils. It also includes licensing, like the GPL for instance.
This GNU project that includes amongst many things Bash and the GPL license were launched by the Free Software Foundation and Richard M. Stallman as part of the man's vision of software freedom.
Don't correct me if you aren't at least going to provide factual and true information. Again, I know what I meant and I know this stuff as I've been dabbling in it for the last 12 years if not more.
Here are some links you might find interesting if you really want to learn about this stuff, none of these will be on Apple.com (please don't use Apple.com to prove points about Free Software) :
GNU GPL : http://www.gnu.org/licenses/gpl.html
List of GNU projects : http://directory.fsf.org/GNU/ (notice Bash)
An explanation of the GNU project : http://www.gnu.org/gnu/gnu.html
So to correct your post which attempted to correct mine : Bash is a GNU sub-project that is licensed under the GPL. Thank you, I knew all of that already. And technically, you're quite wrong, every GPL package that Apple ships is under GNU licensing since the GPL is a GNU project license.