manvolnum — A reference volume number.
The notion of a volume number is historical.
UNIX manual pages (“man pages”), for
refentry was devised, were typically stored in
three-ring binders. Each bound manual was a volume in a set and
contained information about a particular class of things. For example,
volume 1 was for user commands, and volume 8 was for administrator
Volume numbers need not be strictly numerical; volume “l” frequently held manual pages for local additions to the system, and the X Window System manual pages had an “x” in the volume number: for example, 1x.
The content of
manvolnum is usually printed
in parentheses after the element title or citation.
1 <article xmlns='http://docbook.org/ns/docbook'> 2 <title>Example manvolnum</title> 4 <para>For a further description of print formats, consult the <citerefentry><refentrytitle>printf</refentrytitle> 6 <manvolnum>3S</manvolnum></citerefentry> manual page. </para> 8 </article>
For a further description of print formats, consult the