Manual Page Result
0
Command: man | Section: 1 | Source: OpenBSD | File: man.1
MAN(1) FreeBSD General Commands Manual MAN(1)
NAME
man - display manual pages
SYNOPSIS
man [-acfhklw] [-C file] [-M path] [-m path] [-S subsection]
[[-s] section] name ...
DESCRIPTION
The man utility displays the manual page entitled name. Pages may be
selected according to a specific category (section) or machine
architecture (subsection), or searched for with -k using apropos(1)
search expressions. The default pager, less(1), supports the command :t
to jump to definitions of specific terms (see MANPAGER, below).
The options are as follows:
-a Display all matching manual pages.
-C file
Use the specified file instead of the default configuration file.
This permits users to configure their own manual environment.
See man.conf(5) for a description of the contents of this file.
-c Copy the manual page to the standard output instead of using
less(1) to paginate it. This is done by default if the standard
output is not a terminal device.
When using -c, most terminal devices are unable to show the
markup. To print the output of man to the terminal with markup
but without using a pager, pipe it to ul(1). To remove the
markup, pipe the output to col(1) -b instead.
-f A synonym for whatis(1). It searches for name in manual page
names and displays the header lines from all matching pages. The
search is case insensitive and matches whole words only.
-h Display only the SYNOPSIS lines of the requested manual pages.
Implies -a and -c.
-k A synonym for apropos(1). Instead of name, an expression can be
provided using the syntax described in the apropos(1) manual. By
default, it displays the header lines of all matching pages.
-l A synonym for mandoc(1). The name arguments are interpreted as
filenames. No search is done and file, path, section,
subsection, and -w are ignored. This option implies -a.
-M path
Override the list of directories to search for manual pages. The
supplied path must be a colon (`:') separated list of
directories. This option also overrides the environment variable
MANPATH and any directories specified in the man.conf(5) file.
-m path
Augment the list of directories to search for manual pages. The
supplied path must be a colon (`:') separated list of
directories. These directories will be searched before those
specified using the -M option, the MANPATH environment variable,
the man.conf(5) file, or the default directories.
-S subsection
Only show pages for the specified machine(1) architecture.
subsection is case insensitive.
By default manual pages for all architectures are installed.
Therefore this option can be used to view pages for one
architecture whilst using another.
This option overrides the MACHINE environment variable.
[-s] section
Only select manuals from the specified section. The currently
available sections are:
1 General commands (tools and utilities).
2 System calls and error numbers.
3 Library functions.
3p perl(1) programmer's reference guide.
4 Device drivers.
5 File formats.
6 Games.
7 Miscellaneous information.
8 System maintenance and operation commands.
9 Kernel internals.
-w List the pathnames of all matching manual pages instead of
displaying any of them. If no name is given, list the
directories that would be searched.
The options -IKOTW are also supported and are documented in mandoc(1).
The options -fkl are mutually exclusive and override each other.
The search starts with the -m argument if provided, then continues with
the -M argument, the MANPATH variable, the manpath entries in the
man.conf(5) file, or with /usr/share/man:/usr/X11R6/man:/usr/local/man by
default. Within each of these, directories are searched in the order
provided. Within each directory, the search proceeds according to the
following list of sections: 1, 8, 6, 2, 3, 5, 7, 4, 9, 3p. The first
match found is shown.
The mandoc.db(5) database is used for looking up manual page entries. In
cases where the database is absent, outdated, or corrupt, man falls back
to looking for files called name.section. If both a formatted and an
unformatted version of the same manual page, for example cat1/foo.0 and
man1/foo.1, exist in the same directory, only the unformatted version is
used. The database is kept up to date with makewhatis(8), which is run
by the weekly(8) maintenance script.
Guidelines for writing man pages can be found in mdoc(7).
ENVIRONMENT
MACHINE As some manual pages are intended only for specific
architectures, man searches any subdirectories, with the same
name as the current architecture, in every directory which it
searches. Machine specific areas are checked before general
areas. The current machine type may be overridden by setting
the environment variable MACHINE to the name of a specific
architecture, or with the -S option. MACHINE is case
insensitive.
MANPAGER Any non-empty value of the environment variable MANPAGER is
used instead of the standard pagination program, less(1). If
less(1) is used, the interactive :t command can be used to go
to the definitions of various terms, for example command line
options, command modifiers, internal commands, environment
variables, function names, preprocessor macros, errno(2)
values, and some other emphasized words. Some terms may have
defining text at more than one place. In that case, the
less(1) interactive commands t and T can be used to move to the
next and to the previous place providing information about the
term last searched for with :t. The -O tag[=term] option
documented in the mandoc(1) manual opens a manual page at the
definition of a specific term rather than at the beginning.
MANPATH Override the standard search path which is either specified in
man.conf(5) or the default path. The format of MANPATH is a
colon (`:') separated list of directories. Invalid directories
are ignored. Overridden by -M, ignored if -l is specified.
If MANPATH begins with a colon, it is appended to the standard
path; if it ends with a colon, it is prepended to the standard
path; or if it contains two adjacent colons, the standard path
is inserted between the colons.
PAGER Specifies the pagination program to use when MANPAGER is not
defined. If neither PAGER nor MANPAGER is defined, less(1) is
used.
FILES
/etc/man.conf default man configuration file
EXIT STATUS
The man utility exits 0 on success, and >0 if an error occurs. See
mandoc(1) for details.
EXAMPLES
Show all manual pages that mention the PWD environment variable:
$ man -ak Ev=PWD
Show the ksh(1) manual and jump to the place where the pwd builtin
command is described:
$ man -O tag=pwd ksh
Equivalently, use the command `man ksh', then type `:tpwd' and press the
return key.
Format a page for pasting extracts into an email message -- avoid
printing any UTF-8 characters, reduce the width to ease quoting in
replies, and remove markup:
$ man -T ascii -O width=65 pledge | col -b
Read a typeset page in a PDF viewer:
$ MANPAGER=mupdf man -T pdf lpd
SEE ALSO
apropos(1), col(1), mandoc(1), ul(1), whereis(1), man.conf(5), mdoc(7)
STANDARDS
The man utility is compliant with the IEEE Std 1003.1-2008 ("POSIX.1")
specification.
The flags [-aCcfhIKlMmOSsTWw], as well as the environment variables
MACHINE, MANPAGER, and MANPATH, are extensions to that specification.
HISTORY
A man command first appeared in Version 2 AT&T UNIX.
The -w option first appeared in Version 7 AT&T UNIX; -f and -k in
/usr/usb/man in 4.0BSD; -M in 4.3BSD; -a in 4.3BSD-Tahoe; -c and -m in
4.3BSD-Reno; -h in 4.3BSD-Net/2; -C in NetBSD 1.0; -s and -S in
OpenBSD 2.3; and -I, -K, -l, -O, and -W in OpenBSD 5.7. The -T option
first appeared in AT&T System III UNIX and was also added in OpenBSD 5.7.
FreeBSD 14.1-RELEASE-p8 January 26, 2025 FreeBSD 14.1-RELEASE-p8