NAME
man —
display online manual documentation
pages
SYNOPSIS
man |
[-adhlo] [-t |
-w] [-M
manpath] [-P
pager] [-S
mansect] [-m
arch[:machine]]
[-p [eprtv]]
[mansect] page |
file ... |
man |
-K | -f |
-k expression ... |
DESCRIPTION
The man utility finds and displays online
manual documentation pages. If mansect is provided,
man restricts the search to the specific section of
the manual.
The sections of the manual are:
- FreeBSD General Commands Manual
- FreeBSD System Calls Manual
- FreeBSD Library Functions Manual
- FreeBSD Kernel Interfaces Manual
- FreeBSD File Formats Manual
- FreeBSD Games Manual
- FreeBSD Miscellaneous Information Manual
- FreeBSD System Manager's Manual
- FreeBSD Kernel Developer's Manual
Options that man understands:
-Kexpression- Search full text of all manual pages for an extended regular expression, as described in re_format(7). This option requires mandoc(1). This is a slow operation.
-Mmanpath- Force a specific colon separated manual path instead of the default search
path. See
MANPATHin ENVIRONMENT. -Ppager- Use specified pager. Defaults to ‘
less -sR’ if color support is enabled, or ‘less -s’. Overrides theMANPAGERenvironment variable, which in turn overrides thePAGERenvironment variable. -Smansect- Restrict manual sections searched to the specified colon delimited list.
Defaults to
‘
1:8:2:3:3lua:n:4:5:6:7:9:l’. Overrides theMANSECTenvironment variable. -a- Display all manual pages instead of just the first found for each page argument.
-d- Print extra debugging information. Repeat for increased verbosity. Does not display the manual page.
-fexpression- Search names of all manual pages for an extended regular expression, emulating whatis(1).
-h- Display short help message and exit.
-kexpression- Search names and descriptions of all manual pages for an extended regular expression, emulating basic functionality of apropos(1).
-l- Interpret all arguments as absolute or relative filename(s) of the manual
page(s) to display. No search is done and the options
-M,-m, and-Sare ignored. -march[:machine]- Override the default architecture and machine settings allowing lookup of
other platform specific manual pages. See
IMPLEMENTATION NOTES for
how this option changes the default behavior. Overrides the
MACHINE_ARCHandMACHINEenvironment variables. -o- Force use of non-localized manual pages. See
IMPLEMENTATION NOTES for
how locale specific searches work. Overrides the
LC_ALL,LC_CTYPE, andLANGenvironment variables. -p[eprtv]- Use the list of given preprocessors before running
nroff(1) (ports/textproc/groff) or
troff(1) (ports/textproc/groff).
Valid preprocessors arguments:
e- eqn(1) (ports/textproc/groff)
p- pic(1) (ports/textproc/groff)
r- refer(1) (ports/textproc/groff)
t- tbl(1) (ports/textproc/groff)
v- vgrind(1)
Overrides the
MANROFFSEQenvironment variable. -t- Send manual page source through troff(1) (ports/textproc/groff) allowing transformation of the manual pages to other formats.
-w- Display the location of the manual page instead of the contents of the manual page.
IMPLEMENTATION NOTES
Locale Specific Searches
The man utility supports manual pages in
different locales. The search behavior is dictated by the first of three
environment variables with a nonempty string:
LC_ALL, LC_CTYPE, or
LANG. If set, man will
search for locale specific manual pages using the following logic:
- lang_country.charset
- lang.charset
en.charset
For example, if LC_ALL is set to
‘ja_JP.eucJP’,
man will search the following paths when considering
section 1 manual pages in /usr/share/man:
- /usr/share/man/ja_JP.eucJP/man1
- /usr/share/man/ja.eucJP/man1
- /usr/share/man/en.eucJP/man1
- /usr/share/man/man1
Platform Specific Searches
The man utility supports platform specific
manual pages. The search behavior is dictated by the
-m option or the
MACHINE_ARCH and MACHINE
environment variables. For example, if MACHINE_ARCH
is set to ‘aarch64’ and
MACHINE is set to
‘arm64’, man
will search the following paths when considering section 4 manual pages in
/usr/share/man:
- /usr/share/man/man4/aarch64
- /usr/share/man/man4/arm64
- /usr/share/man/man4
Displaying Specific Manual Files
For compatibility reasons, man will
interpret any argument containing at least one
‘/’ character as an absolute or
relative path to a manual page to be displayed. This heuristic, made
redundant by the more widely supported -l option, is
now deprecated and may be removed in future releases.
ENVIRONMENT
The following environment variables affect the execution of
man:
LC_ALL,LC_CTYPE,LANG- Used to find locale specific manual pages. Valid values can be found by
running the
locale(1) command. See
IMPLEMENTATION NOTES for
details. Influenced by the
-ooption. MACHINE_ARCH,MACHINE- Used to find platform specific manual pages. If unset, the output of
‘
sysctl hw.machine_arch’ and ‘sysctl hw.machine’ is used respectively. See IMPLEMENTATION NOTES for details. Corresponds to the-moption. MANPATH- A colon (‘
:’) separated list of directories to check for manual pages. Invalid paths, or paths without manual databases, are ignored. Overridden by-M. IfMANPATHbegins with a colon, it is appended to the default list; if it ends with a colon, it is prepended to the default list; or if it contains two adjacent colons, the standard search path is inserted between the colons. If none of these conditions are met, it overrides the standard search path. See manpath(1). MANROFFSEQ- Used to determine the preprocessors for the manual source before running
nroff(1) (ports/textproc/groff) or
troff(1) (ports/textproc/groff). If
unset, defaults to
tbl(1) (ports/textproc/groff).
Corresponds to the
-poption. MANSECT- Restricts manual sections searched to the specified colon delimited list.
Corresponds to the
-Soption. MANWIDTH- If set to a numeric value, used as the width manpages should be displayed.
Otherwise, if set to a special value
‘
tty’, and output is to a terminal, the pages may be displayed over the whole width of the screen. MANCOLOR- If set, enables color support.
MANPAGER- Program used to display files.
If unset, and color support is enabled, ‘
less -sR’ is used.If unset, and color support is disabled, then
PAGERis used. If that has no value either, ‘less -s’ is used.
FILES
- /etc/man.conf
- System configuration file
- /usr/local/etc/man.d/*.conf
- Local configuration files
EXIT STATUS
The man utility exits 0 on success,
and >0 if an error occurs.
EXAMPLES
Show the manual page for stat(2):
$ man 2 statShow all manual pages for
‘stat’:
$ man -a statList manual pages which match the regular expression either in the title or in the body:
$ man -k
'\<copy\>.*archive'Show the manual page for ls(1) using cat(1) as the pager:
$ man -P cat lsShow the location of the ls(1) manual page:
$ man -w lsShow a manual page in the current working directory:
$ man -l man.1Show the location of manual pages in sections 1 and 8 which
contain the word ‘arm’:
$ man -w -K '\<arm\>' -S
1:8SEE ALSO
apropos(1), intro(1), mandoc(1), manpath(1), whatis(1), intro(2), intro(3), intro(3lua), intro(4), intro(5), man.conf(5), intro(6), intro(7), mdoc(7), re_format(7), intro(8), intro(9)