byobu-shell is a simple script that prints the message of the day (/etc/motd) and launches a shell.
$SHELL will be invoked if it exists. Otherwise, /bin/sh will be used.
This manpage and the utility were written by Dustin Kirkland <email@example.com> for Ubuntu systems (but may be used by others). Permission is granted to copy, distribute and/or modify this document and the utility under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation.
The complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL on Debian/Ubuntu systems, or in /usr/share/doc/fedora-release-*/GPL on Fedora systems, or on the web at http://www.gnu.org/licenses/gpl.txt.