This Debian package is currently maintained by
Clint Adams <clint@debian.org>

posh is Copyright © 2002-2020
by Clint Adams, and is distributed under the terms of the GNU
General Public License, version 3 or later, which can be found at
/usr/share/common-licenses/GPL-3 .

posh contains code from pdksh 5.2.14, which is "in the public domain."

posh contains code from mksh 39.1, which is under the following
copyright and license:

The MirBSD Korn Shell is
Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
        Thorsten Glaser <tg@mirbsd.org>

Provided that these terms and disclaimer and all copyright notices
are retained or reproduced in an accompanying document, permission
is granted to deal in this work without restriction, including un‐
limited rights to use, publicly perform, distribute, sell, modify,
merge, give away, or sublicence.

This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
the utmost extent permitted by applicable law, neither express nor
implied; without malicious intent or gross negligence. In no event
may a licensor, author or contributor be held liable for indirect,
direct, other damage, loss, or other issues arising in any way out
of dealing in the work, even if advised of the possibility of such
damage or existence of a defect, except proven that it results out
of said person’s immediate fault when using the work as intended.

