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.\" $OpenBSD: man.conf.5,v 1.7 2000/03/14 21:31:35 aaron Exp $
.\"
.\" Copyright (c) 1989, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)man.conf.5 8.5 (Berkeley) 1/2/94
.\"
.Dd January 2, 1994
.Dt MAN.CONF 5
.Os
.Sh NAME
.Nm man.conf
.Nd configuration file for
.Xr man 1
.Sh DESCRIPTION
The
.Xr man 1 ,
.Xr apropos 1 ,
and
.Xr whatis 1
commands
search for manual pages or their database files as specified by the
.Nm man.conf
file.
Manual pages are normally expected to be preformatted (see
.Xr nroff 1 )
and named with a trailing ``.0''.
.Pp
The
.Nm man.conf
file contains two types of lines.
.Pp
The first type of line is a ``section'' line, which contains a
section name followed by one or more directory paths.
The directory paths may contain the normal shell globbing characters,
including curly braces (``{}''); to escape a shell globbing character,
precede it with a backslash (``\e'').
Lines in this format specify that manual pages for the section
may be found in the following directories.
.Pp
Directories named with a trailing slash character (``/'') are expected
to contain subdirectories of manual pages, (see the keyword ``_subdir''
below) instead of manual pages.
These subdirectories are searched instead of the directory.
.Pp
Before searching any directory for a manual page, the
.Xr man 1
command always searches the subdirectory with the same name
as the current machine type, if it exists.
No specification of these subdirectories is necessary in the
.Nm man.conf
file.
.Pp
Section names are unrestricted except for the reserved words specified
below; in general, you should avoid anything with a leading underscore
(``_'') to avoid future incompatibilities.
.Pp
The section named ``_default'' is the list of directories that will
be searched if no section is specified by the user.
.Pp
The second type of line is preceded with a ``keyword''.
The possible keywords and their meanings are as follows:
.Bl -tag -width "_version"
.It _build
Man file names, regardless of their format, are expected to end in
a ``.*'' pattern, i.e., a ``.'' followed by some suffix.
The first field of a _build line lists a suffix which indicates
files which need to be reformatted or manipulated in some way before
being displayed to the user.
The suffix may contain the normal shell globbing characters (NOT
including curly braces (``{}'')).
The rest of the line must be a shell command line, the standard
output of which is the manual page in a format which may be directly
displayed to the user.
Any occurrences of the string ``%s'' in the shell command line will
be replaced by the name of the file which is being reformatted.
.It _subdir
The list (in search order) of subdirectories which will be searched in
any directory named with a trailing slash (``/'') character.
This list is also used when a path is specified to the
.Xr man 1
utility by the user, using the
.Ev MANPATH
environment variable or the
.Fl M
and
.Fl m
options.
.It _suffix
Man file names, regardless of their format, are expected to end in
a ``.*'' pattern, i.e. a ``.'' followed by some suffix.
Each field of a _suffix line is a suffix which indicates
files which do not need to be reformatted or manipulated
in any way, but which may be directly displayed to the user.
Each suffix may contain the normal shell globbing characters (NOT
including curly braces (``{}'')).
.It _version
The version of the configuration file.
.It _whatdb
The full pathname (not just a directory path) for a database to be used
by the
.Xr apropos 1
and
.Xr whatis 1
commands.
.El
.Pp
Multiple specifications for all types of lines are cumulative and the
entries are used in the order listed in the file; multiple entries may
be listed per line, as well.
.Pp
Empty lines or lines whose first non-whitespace character is a hash
mark (``#'') are ignored.
.Sh EXAMPLES
Given the following
.Nm man.conf
file:
.Bd -literal -offset indent
_version BSD.2
_subdir cat[123]
_suffix .0
_build .[1-9] nroff -man %s
_build .tbl tbl %s | nroff -man
_default /usr/share/man/
sect3 /usr/share/man/{old/,}cat3
.Ed
.Pp
By default, the command
.Dq Li man mktemp
will search for
``mktemp.<any_digit>'' and ``mktemp.tbl''
in the directories
.Dq Pa /usr/share/man/cat1 ,
.Dq Pa /usr/share/man/cat2 ,
and
.Dq Pa /usr/share/man/cat3 .
If on a machine of type ``vax'', the subdirectory ``vax'' in each
directory would be searched as well, before the directory was
searched.
.Pp
If ``mktemp.tbl'' was found first, the command
.Dq Li tbl <manual page> | nroff -man
would be run to build a man page for display to the user.
.Pp
The command
.Dq Li man sect3 mktemp
would search the directories
.Dq Pa /usr/share/man/old/cat3
and
.Dq Pa /usr/share/man/cat3 ,
in that order, for
the
.Xr mktemp 1
manual page.
If a subdirectory with the same name as the current machine type
existed in any of them, it would be searched as well, before each
of them were searched.
.Sh FILES
.Bl -tag -width /etc/man.conf -compact
.It Pa /etc/man.conf
standard manual directory search path
.El
.Sh SEE ALSO
.Xr apropos 1 ,
.Xr machine 1 ,
.Xr man 1 ,
.Xr whatis 1 ,
.Xr whereis 1 ,
.Xr fnmatch 3 ,
.Xr glob 3
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