shell(1)

NAME
shell - Print the message of the day and launch a shell

DESCRIPTION
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.

http://launchpad.net/byobu

AUTHOR
This manpage and the shell utility was written by Dustin Kirkland <kirkland@canonical.com> for Ubuntu systems (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.