3 .\" Copyright (c) 1990, 1991, John W. Eaton.
5 .\" You may distribute under the terms of the GNU General Public
6 .\" License as specified in the README file that comes with the man 1.0
10 .\" jwe@che.utexas.edu
11 .\" Department of Chemical Engineering
12 .\" The University of Texas at Austin
13 .\" Austin, Texas 78712
15 .\" $FreeBSD: src/gnu/usr.bin/man/man/man.man,v 1.10.2.8 2002/06/25 00:02:55 eric Exp $
22 .Nd format and display the on-line manual pages
35 formats and displays the on-line manual pages.
36 This version knows about the
40 environment variables, so you can have
41 your own set(s) of personal man pages and choose whatever program you
42 like to display the formatted pages.
47 only looks in that section of the manual.
48 You may also specify the order to search the sections for entries and
49 which preprocessors to run on the source files via command line options
50 or environment variables.
51 If enabled by the system administrator, formatted man pages will also
52 be compressed with the
54 command to save space.
60 treats it as a file name.
62 The options are as follows:
67 will display all the manual pages
71 Using this option forces
73 to exit after displaying the first manual page it
76 Specify an alternate manpath.
81 (which is built into the
84 to determine the path to search.
85 This option overrides the
89 Specify which pager to use.
94 This option overrides the
98 List is a colon separated list of manual sections to search.
100 .Dq 1:8:2:3:4:5:6:7:9 .
101 This option overrides the
103 environment variable.
105 Display all the manual pages
109 This is the default behavior.
111 Don't actually display the man pages, but do print gobs of debugging
117 Print a help message and exit.
122 As some manual pages are intended only for specific architectures,
124 searches any subdirectories,
125 with the same name as the current architecture,
126 in every directory which it searches.
127 Machine specific areas are checked before general areas.
128 The current machine type may be overridden using this option
129 or by setting the environment variable
131 to the name of a specific architecture.
132 This option overrides the
134 environment variable.
136 Look for original, non-localized manpages only.
140 searches for a localized manpage
141 in a set of locale subdirectories of each
145 Locale name is taken from the first of three environment variables
146 with a nonempty value:
147 .Ev LC_ALL , LC_CTYPE ,
150 in the specified order.
152 If the value could not be determined, or is not a valid locale name,
153 then only non-localized manpage will be looked up.
157 will search in the following subdirectories, in the order of precedence:
159 .Bl -item -offset indent -compact
162 .Pa <lang> _ <country> . <charset>
164 .Pa <lang> . <charset>
174 will search in the following subdirectories of the
178 .Bl -item -offset indent -compact
180 .Pa /usr/share/man/de_DE.ISO8859-1
182 .Pa /usr/share/man/de.ISO8859-1
184 .Pa /usr/share/man/en.ISO8859-1
188 if the search of localized manpage fails,
189 it will be looked up in the default
193 Specify the sequence of preprocessors to run before nroff or troff.
194 Not all installations will have a full set of preprocessors.
195 Some of the preprocessors and the letters used to designate them are:
196 eqn (e), grap (g), pic (p), tbl (t), vgrind (v), refer (r).
197 This option overrides the
199 environment variable.
202 .Nm /usr/bin/groff -S -man
203 to format the manual page, passing the output to stdout.
205 .Nm /usr/bin/groff -S -man
206 may need to be passed through some filter or another before being
209 Don't actually display the man pages, but do print the location(s) of
210 the files that would be formatted or displayed.
213 .Bl -tag -width MANROFFSEQ
214 .It Ev LC_ALL , LC_CTYPE , LANG
215 These variables specify the preferred language for manual pages.
222 is set, its value is used to override the current machine type
223 when searching machine specific subdirectories.
227 is set, its value is used as the path to search for manual pages.
231 is set, its value is used to determine the set of preprocessors run
236 By default, pages are passed through the table preprocessor before
241 is set, its value is used to determine which manual sections to search.
245 is set, its value is used as the name of the program to use to display
253 Normally, to look at the relevant manpage information for getopt,
258 However, when referring to a specific section of the manual,
275 option only works if the
277 program is installed.