.\" Man page for man .\" .\" Copyright (c) 1990, 1991, John W. Eaton. .\" .\" You may distribute under the terms of the GNU General Public .\" License as specified in the README file that comes with the man 1.0 .\" distribution. .\" .\" John W. Eaton .\" jwe@che.utexas.edu .\" Department of Chemical Engineering .\" The University of Texas at Austin .\" Austin, Texas 78712 .\" .\" $FreeBSD: src/gnu/usr.bin/man/man/man.man,v 1.21 2002/06/24 20:57:44 eric Exp $ .\" .Dd January 5, 1991 .Dt MAN 1 .Os .Sh NAME .Nm man .Nd format and display the on-line manual pages .Sh SYNOPSIS .Nm .Op Fl adfhkotw .Op Fl m Ar machine .Op Fl p Ar string .Op Fl M Ar path .Op Fl P Ar pager .Op Fl S Ar list .Op Ar section .Ar name ... .Sh DESCRIPTION .Nm Man formats and displays the on-line manual pages. This version knows about the .Ev MANPATH and .Ev PAGER environment variables, so you can have your own set(s) of personal man pages and choose whatever program you like to display the formatted pages. If section is specified, .Nm only looks in that section of the manual. You may also specify the order to search the sections for entries and which preprocessors to run on the source files via command line options or environment variables. If enabled by the system administrator, formatted man pages will also be compressed with the `/usr/bin/gzip -c' command to save space. .Pp The options are as follows: .Bl -tag -width Fl .It Fl M Ar path Specify an alternate manpath. By default, .Nm uses .Xr manpath 1 (which is built into the .Nm binary) to determine the path to search. This option overrides the .Ev MANPATH environment variable. .It Fl P Ar pager Specify which pager to use. By default, .Nm uses .Nm less -Rse . This option overrides the .Ev PAGER environment variable. .It Fl S Ar list List is a colon separated list of manual sections to search. This option overrides the .Ev MANSECT environment variable. .It Fl a By default, .Nm will exit after displaying the first manual page it finds. Using this option forces .Nm to display all the manual pages that match .Ar name , not just the first. .It Fl d Don't actually display the man pages, but do print gobs of debugging information. .It Fl f Equivalent to .Nm whatis . .It Fl h Print a help message and exit. .It Fl k Equivalent to .Nm apropos . .It Fl m Ar machine As some manual pages are intended only for specific architectures, .Nm 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 using this option or by setting the environment variable .Ev MACHINE to the name of a specific architecture. This option overrides the .Ev MACHINE environment variable. .It Fl p Ar string Specify the sequence of preprocessors to run before nroff or troff. Not all installations will have a full set of preprocessors. Some of the preprocessors and the letters used to designate them are: eqn (e), grap (g), pic (p), tbl (t), vgrind (v), refer (r). This option overrides the .Ev MANROFFSEQ environment variable. .It Fl t Use .Nm /usr/bin/groff -S -mandoc to format the manual page, passing the output to stdout. The output from .Nm /usr/bin/groff -S -mandoc may need to be passed through some filter or another before being printed. .It Fl w Don't actually display the man pages, but do print the location(s) of the files that would be formatted or displayed. .El .Sh ENVIRONMENT .Bl -tag -width MANROFFSEQ .It Ev LC_ALL , LC_CTYPE , LANG These variables specify the preferred language for manual pages. (See the .Fl o option above.) .It Ev MACHINE If .Ev MACHINE is set, its value is used to override the current machine type when searching machine specific subdirectories. .It Ev MANPATH If .Ev MANPATH is set, its value is used as the path to search for manual pages. .It Ev MANROFFSEQ If .Ev MANROFFSEQ is set, its value is used to determine the set of preprocessors run before running nroff or troff. By default, pages are passed through the table preprocessor before nroff. .It Ev MANSECT If .Ev MANSECT is set, its value is used to determine which manual sections to search. .It Ev PAGER If .Ev PAGER is set, its value is used as the name of the program to use to display the man page. By default, .Nm less -Rse is used. The .Nm -R flag to .Nm less is critical to the correct display of the output, so the .Nm -R flag is appended to the value specified by .Ev PAGER if it looks like .Nm less is being used. .El .Sh EXAMPLES .Pp Normally, to look at the relevant manpage information for getopt, one would use: .Pp .Dl man getopt .Pp However, when referring to a specific section of the manual, such as .Xr getopt 3 , one would use: .Pp .Dl man 3 getopt .Sh SEE ALSO .Xr apropos 1 , .Xr groff 1 , .Xr less 1 , .Xr manpath 1 , .Xr whatis 1 , .Xr man 7 , .Xr mdoc 7 .Sh BUGS The .Fl t option only works if the .Xr troff 1 Ns -like program is installed.