262 lines
6.6 KiB
Groff
262 lines
6.6 KiB
Groff
.\" $NetBSD: man.1,v 1.28 2014/08/14 15:44:47 apb Exp $
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.\"
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.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)man.1 8.2 (Berkeley) 1/2/94
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.\"
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.Dd August 14, 2014
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.Dt MAN 1
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.Os
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.Sh NAME
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.Nm man
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.Nd display the on-line manual pages
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.Pq aka Dq Em man pages
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.Sh SYNOPSIS
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.Nm
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.Oo Fl acw Ns \&| Ns Fl h Oc
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.Op Fl C Ar file
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.Op Fl M Ar path
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.Op Fl m Ar path
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.Op Fl S Ar srch
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.Oo
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.Op Fl s
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.Ar section
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.Oc
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.Ar name Ar ...
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.Nm
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.Fl k
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.Op Fl C Ar file
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.Op Fl M Ar path
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.Op Fl m Ar path
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.Ar keyword Ar ...
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.Nm
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.Fl p
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.Sh DESCRIPTION
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The
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.Nm
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utility displays the manual pages named on the command line.
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Its options are as follows:
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.Bl -tag -width indent
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.It Fl a
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Display all of the man pages for a specified
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.Ar section
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and
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.Ar name
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combination.
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(Normally, only the first man page found is displayed.)
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.It Fl C
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Use the specified
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.Ar file
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instead of the default configuration file.
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This permits users to configure their own man environment.
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See
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.Xr man.conf 5
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for a description of the contents of this file.
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.It Fl c
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Copy the man page to the standard output instead of using
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.Xr more 1
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to paginate it.
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This is done by default if the standard output is not a terminal device.
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.It Fl h
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Display only the
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.Dq Tn SYNOPSIS
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lines of the requested man pages.
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For commands, this is typically the command line usage information.
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For library functions, this usually contains the required include
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files and function prototypes.
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.It Fl k
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Display the header lines for any man pages matching
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.Ar keyword Ns Pq s ,
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in the same manner as
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.Xr apropos 1 .
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.It Fl M
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Override the list of standard directories which
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.Nm
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searches for man pages.
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The supplied
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.Ar path
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must be a colon
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.Pq Dq \&:
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separated list of directories.
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This search path may also be set using the environment variable
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.Ev MANPATH .
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The subdirectories to be searched, and their search order,
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is specified by the
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.Dq _subdir
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line in the
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.Nm
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configuration file.
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.It Fl m
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Augment the list of standard directories which
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.Nm
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searches for man pages.
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The supplied
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.Ar path
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must be a colon
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.Pq Dq \&:
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separated list of directories.
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These directories will be searched before the standard directories or
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the directories specified using the
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.Fl M
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option or the
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.Ev MANPATH
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environment variable.
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The subdirectories to be searched, and their search order,
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is specified by the
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.Dq _subdir
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line in the
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.Nm
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configuration file.
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.It Fl p
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Print the search path for the manual pages.
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.It Fl s
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Restrict the directories that
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.Nm
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will search to the specified section.
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The
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.Nm
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configuration file (see
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.Xr man.conf 5 )
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specifies the possible
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.Ar section
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values that are currently available.
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.It Fl S
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Display only man pages that have the specified string in the directory
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part of their filenames.
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This allows the man page search process criteria to be
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narrowed without having to change the MANPATH or
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.Dq _default
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variables.
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.It Fl w
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List the pathnames of the man pages which
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.Nm
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would display for the specified
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.Ar section
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and
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.Ar name
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combination.
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.El
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.Pp
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If the
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.Ql Fl s
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option is not specified,
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there is more than one argument,
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the
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.Ql Fl k
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option is not used, and the first argument is a valid section, then that
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argument will be used as if specified by the
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.Ql Fl s
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option.
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.Pp
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If
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.Ar name
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is given with a full path (beginning with
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.Ql Pa \&/ )
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or a relative path that begins with
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.Ql Pa .\&/
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or
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.Ql Pa .\&./ ,
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then
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.Nm
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interprets it as a file specification, so that you can do
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.Nm
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.Cm ./foo.5
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or even
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.Nm
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.Cm /cd/foo/bar.1.gz .
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If
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.Ar name
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contains
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.Ql Pa /
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but does not match one of the above cases, then the
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search path is used; this allows you to request
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machine-specific man pages, such as
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.Nm Cm vax/boot .
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.Sh ENVIRONMENT
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.Bl -tag -width MANPATHX
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.It Ev MACHINE
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As some man pages are intended only for specific architectures,
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.Nm
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searches any subdirectories,
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with the same name as the current architecture,
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in every directory which it searches.
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Machine specific areas are checked before general areas.
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The current machine type may be overridden by setting the environment
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variable
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.Ev MACHINE
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to the name of a specific architecture.
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Machine-specific man pages may also be requested by
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prepending the relevant subdirectory name to the page name,
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separated by
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.Ql Pa \&/ .
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.It Ev MANPATH
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The standard search path used by
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.Nm
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may be overridden by specifying a path in the
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.Ev MANPATH
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environment variable.
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The format of the path is a colon
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.Pq Dq \&:
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separated list of directories.
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The subdirectories to be searched as well as their search order
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is specified by the
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.Dq _subdir
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line in the
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.Nm
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configuration file.
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.It Ev PAGER
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The pagination command used for writing the output.
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If the
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.Ev PAGER
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environment variable is null or not set, the standard pagination program
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.Xr more 1
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will be used.
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.El
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.Sh FILES
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.Bl -hang -width /etc/man.conf -compact
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.It Pa /etc/man.conf
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default man configuration file.
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.El
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.Sh SEE ALSO
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.Xr apropos 1 ,
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.Xr whatis 1 ,
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.Xr whereis 1 ,
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.Xr man.conf 5 ,
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.Xr mdoc 7 ,
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.Xr mdoc.samples 7
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.Sh STANDARDS
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.Nm
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conforms to
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.St -xcu5 .
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.\"and is expected to conform to
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.\".St -p1003.2-?? .
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.Sh BUGS
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The on-line man pages are, by necessity, forgiving toward stupid
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display devices, causing a few man pages to be not as nicely formatted
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as their typeset counterparts.
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