Why is 'more' giving the 'next file' prompt?

[Guy Harris]

>pity you haven't got pg

If he mistakenly referred to his OS as "4.3BSD" when he meant "SunOS"
(they are similar in some ways, but are *not* the same!), he might have
"pg" if his system administrator installed the "System V" optional
software category; look in "/usr/5bin".  Similar things may apply to
other OSes that could be confused with 4.3BSD; they may include a bunch
of S5 commands as well.