Hash :
a4c42d9a
Author :
Thomas de Grivel
Date :
2023-01-21T15:08:53
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510
This is help2man.info, produced by makeinfo version 5.1 from
help2man.texi.
This file documents the GNU 'help2man' command which produces simple
manual pages from the '--help' and '--version' output of other commands.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2009, 2010,
2011 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.
Permission is granted to copy and distribute modified versions of
this manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Permission is granted to copy and distribute translations of this
manual into another language, under the above conditions for modified
versions, except that this permission notice may be stated in a
translation approved by the Foundation.
INFO-DIR-SECTION Software development
START-INFO-DIR-ENTRY
* help2man: (help2man). Automatic manual page generation.
END-INFO-DIR-ENTRY
File: help2man.info, Node: Top, Next: Overview, Up: (dir)
'help2man'
**********
'help2man' produces simple manual pages from the '--help' and
'--version' output of other commands.
* Menu:
* Overview:: Overview of 'help2man'.
* Invoking help2man:: How to run 'help2man'.
* --help recommendations:: Recommended formatting for -help output.
* Including text:: Including additional text in the output.
* Makefile usage:: Using 'help2man' with 'make'.
* Localised man pages:: Producing native language manual pages.
* Example:: Example 'help2man' output.
* Reports:: Reporting bugs or suggestions.
* Availability:: Obtaining 'help2man'.
File: help2man.info, Node: Overview, Next: Invoking help2man, Prev: Top, Up: Top
1 Overview of 'help2man'
************************
'help2man' is a tool for automatically generating simple manual pages
from program output.
Although manual pages are optional for GNU programs other projects,
such as Debian require them (*note (standards)Man Pages::)
This program is intended to provide an easy way for software authors
to include a manual page in their distribution without having to
maintain that document.
Given a program which produces reasonably standard '--help' and
'--version' outputs, 'help2man' can re-arrange that output into
something which resembles a manual page.
File: help2man.info, Node: Invoking help2man, Next: --help recommendations, Prev: Overview, Up: Top
2 How to Run 'help2man'
***********************
The format for running the 'help2man' program is:
help2man [OPTION]... EXECUTABLE
'help2man' supports the following options:
'-n STRING'
'--name=STRING'
Use STRING as the description for the 'NAME' paragraph of the
manual page.
By default (for want of anything better) this paragraph contains
'manual page for PROGRAM VERSION'.
This option overrides an include file '[name]' section (*note
Including text::).
'-s SECTION'
'--section SECTION'
Use SECTION as the section for the man page. The default section
is 1.
'-m MANUAL'
'--manual=MANUAL'
Set the name of the manual section to SECTION, used as a centred
heading for the manual page. By default 'User Commands' is used
for pages in section 1, 'Games' for section 6 and 'System
Administration Utilities' for sections 8 and 1M.
'-S SOURCE'
'--source=SOURCE'
The program source is used as a page footer, and often contains the
name of the organisation or a suite of which the program is part.
By default the value is the package name and version.
'-L LOCALE'
'--locale=LOCALE'
Select output locale (default 'C'). Both the program and
'help2man' must support the given LOCALE (*note Localised man
pages::).
'-i FILE'
'--include=FILE'
Include material from FILE (*note Including text::).
'-I FILE'
'--opt-include=FILE'
A variant of '--include' for use in Makefile pattern rules which
does not require FILE to exist.
'-o FILE'
'--output=FILE'
Send output to FILE rather than 'stdout'.
'-p TEXT'
'--info-page=TEXT'
Name of Texinfo manual.
'-N'
'--no-info'
Suppress inclusion of a 'SEE ALSO' paragraph directing the reader
to the Texinfo documentation.
'-l'
'--libtool'
Drop 'lt-' prefix from instances of the program name in the
synopsis ('libtool' creates wrapper scripts in the build directory
which invoke 'foo' as '.libs/lt-foo').
'--help'
'--version'
Show help or version information.
By default 'help2man' passes the standard '--help' and '--version'
options to the executable although alternatives may be specified using:
'-h OPTION'
'--help-option=OPTION'
Help option string.
'-v OPTION'
'--version-option=OPTION'
Version option string.
'--version-string=STRING'
Version string.
'--no-discard-stderr'
Include stderr when parsing option output.
File: help2man.info, Node: --help recommendations, Next: Including text, Prev: Invoking help2man, Up: Top
3 '--help' Recommendations
**************************
Here are some recommendations for what to include in your '--help'
output. Including these gives 'help2man' the best chance at generating
a respectable man page, as well as benefitting users directly.
*Note (standards)Command-Line Interfaces::, and *note (standards)Man
Pages::, for the official GNU standards relating to '--help' and man
pages.
* A synopsis of how to invoke the program. If different usages of
the program have different invocations, then list them all. For
example (edited for brevity):
Usage: cp [OPTION]... SOURCE DEST
or: cp [OPTION]... SOURCE... DIRECTORY
...
Use 'argv[0]' for the program name in these synopses, just as it
is, with no directory stripping. This is in contrast to the
canonical (constant) name of the program which is used in
'--version'.
* A very brief explanation of what the program does, including
default and/or typical behaviour. For example, here is 'cp''s:
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
* A list of options, indented to column 2. If the program supports
one-character options, put those first, then the equivalent long
option (if any). If the option takes an argument, include that
too, giving it a meaningful name. Align the descriptions in a
convenient column, if desired. Note that to be correctly
recognised by 'help2man' the description must be separated from the
options by at least two spaces and descriptions continued on
subsequent lines must start at the same column.
Here again is an (edited) excerpt from 'cp', showing a short option
with an equivalent long option, a long option only, and a short
option only:
-a, --archive same as -dpR
--backup[=CONTROL] make a backup of each ...
-b like --backup but ...
For programs that take many options, it may be desirable to split
the option list into sections such as 'Global', 'Output control',
or whatever makes sense in the particular case. It is usually best
to alphabetise (by short option name first, then long) within each
section, or the entire list if there are no sections.
* Any useful additional information about program behaviour, such as
influential environment variables, further explanation of options,
etc. For example, 'cp' discusses 'VERSION_CONTROL' and sparse
files.
* A few examples of typical usage, at your discretion. One good
example is usually worth a thousand words of description, so this
is highly recommended.
* In closing, a line stating how to email bug reports. Typically,
MAILING-ADDRESS will be 'bug-PROGRAM@gnu.org'; please use this form
for GNU programs whenever possible. It's also good to mention the
home page of the program, other mailing lists, etc.
The 'argp' and 'popt' programming interfaces let you specify option
descriptions for '--help' in the same structure as the rest of the
option definition; you may wish to consider using these routines for
option parsing instead of 'getopt'.
File: help2man.info, Node: Including text, Next: Makefile usage, Prev: --help recommendations, Up: Top
4 Including Additional Text in the Output
*****************************************
Additional static text may be included in the generated manual page by
using the '--include' and '--opt-include' options (*note Invoking
help2man::). While these files can be named anything, for consistency
we suggest to use the extension '.h2m' for help2man include files.
The format for files included with these option is simple:
[section]
text
/pattern/
text
Blocks of verbatim *roff text are inserted into the output either at
the start of the given '[section]' (case insensitive), or after a
paragraph matching '/pattern/'.
Patterns use the Perl regular expression syntax and may be followed
by the 'i', 's' or 'm' modifiers (*note perlre(1): (*manpages*)perlre.)
Lines before the first section or pattern which begin with '-' are
processed as options. Anything else is silently ignored and may be used
for comments, RCS keywords and the like.
The section output order (for those included) is:
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
ENVIRONMENT
FILES
EXAMPLES
_other_
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO
Any '[name]' or '[synopsis]' sections appearing in the include file
will replace what would have automatically been produced (although you
can still override the former with '--name' if required).
Other sections are prepended to the automatically produced output for
the standard sections given above, or included at _other_ (above) in the
order they were encountered in the include file.
File: help2man.info, Node: Makefile usage, Next: Localised man pages, Prev: Including text, Up: Top
5 Using 'help2man' With 'make'
******************************
A suggested use of 'help2man' in Makefiles is to have the manual page
depend not on the binary, but on the source file(s) in which the
'--help' and '--version' output are defined.
This usage allows a manual page to be generated by the maintainer and
included in the distribution without requiring the end-user to have
'help2man' installed.
An example rule for the program 'prog' could be:
prog.1: $(srcdir)/main.c
-$(HELP2MAN) --output=$@ --name='an example program' ./prog
The value of 'HELP2MAN' may be set in 'configure.in' using either of:
AM_MISSING_PROG(HELP2MAN, help2man, $missing_dir)
for 'automake', or something like:
AC_PATH_PROG(HELP2MAN, help2man, false // No help2man //)
for 'autoconf' alone.
File: help2man.info, Node: Localised man pages, Next: Example, Prev: Makefile usage, Up: Top
6 Producing Native Language Manual Pages
****************************************
Manual pages may be produced for any locale supported by both the
program and 'help2man' with the '--locale' ('-L') option.
help2man -L fr_FR@euro -o cp.fr.1 cp
See <http://translationproject.org/domain/help2man.html> for the
languages currently supported by 'help2man', and *note Reports:: for how
to submit other translations.
6.1 Changing the Location of Message Catalogs
=============================================
When creating localised manual pages from a program's build directory it
is probable that the translations installed in the standard location
will not be (if installed at all) correct for the version of the program
being built.
A preloadable library is provided with 'help2man' which will
intercept 'bindtextdomain' calls configuring the location of message
catalogs for the domain given by '$TEXTDOMAIN' and override the location
to the path given by '$LOCALEDIR'.
So for example:
mkdir -p tmp/fr/LC_MESSAGES
cp po/fr.gmo tmp/fr/LC_MESSAGES/PROG.mo
LD_PRELOAD="/usr/lib/help2man/bindtextdomain.so" \
LOCALEDIR=tmp \
TEXTDOMAIN=PROG \
help2man -L fr_FR@euro -i PROG.fr.h2m -o PROG.fr.1 PROG
rm -rf tmp
will cause PROG to load the message catalog from 'tmp' rather than
'/usr/share/locale'.
Notes:
* The generalisation of 'fr_FR@euro' to 'fr' in the example above is
done by 'gettext', if a more specific match were available it would
also have been re-mapped.
* This preload has only been tested against 'eglibc' 2.11.2 and
'gettext' 0.18.1.1 on a GNU/Linux system; let me know if it does
(or doesn't) work for you (*note Reports::).
File: help2man.info, Node: Example, Next: Reports, Prev: Localised man pages, Up: Top
7 Example 'help2man' Output
***************************
Given a hypothetical program 'foo' which produces the following output:
$ foo --version
GNU foo 1.1
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by A. Programmer.
$ foo --help
GNU `foo' does nothing interesting except serve as an example for
`help2man'.
Usage: foo [OPTION]...
Options:
-a, --option an option
-b, --another-option[=VALUE]
another option
--help display this help and exit
--version output version information and exit
Examples:
foo do nothing
foo --option the same thing, giving `--option'
Report bugs to <bug-gnu-utils@gnu.org>.
'help2man' will produce 'nroff' input for a manual page which will be
formatted something like this:
FOO(1) User Commands FOO(1)
NAME
foo - manual page for foo 1.1
SYNOPSIS
foo [OPTION]...
DESCRIPTION
GNU `foo' does nothing interesting except serve as an example for
`help2man'.
OPTIONS
-a, --option
an option
-b, --another-option[=VALUE]
another option
--help display this help and exit
--version
output version information and exit
EXAMPLES
foo do nothing
foo --option
the same thing, giving `--option'
AUTHOR
Written by A. Programmer.
REPORTING BUGS
Report bugs to <bug-gnu-utils@gnu.org>.
COPYRIGHT
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
SEE ALSO
The full documentation for foo is maintained as a Texinfo manual.
If the info and foo programs are properly installed at your site,
the command
info foo
should give you access to the complete manual.
foo 1.1 May 2011 FOO(1)
File: help2man.info, Node: Reports, Next: Availability, Prev: Example, Up: Top
8 Reporting Bugs or Suggestions
*******************************
If you find problems or have suggestions about this program or manual,
please report them to <bug-help2man@gnu.org>.
Note to translators: Translations are handled though the Translation
Project (http://translationproject.org/) see
<http://translationproject.org/html/translators.html> for details.
File: help2man.info, Node: Availability, Prev: Reports, Up: Top
9 Obtaining 'help2man'
**********************
The latest version of this distribution is available online from GNU
mirrors:
<http://ftpmirror.gnu.org/help2man/>
If automatic redirection fails, the list of mirrors is at:
<http://www.gnu.org/order/ftp.html>
Or if need be you can use the main GNU ftp server:
<http://ftp.gnu.org/gnu/help2man/>
Tag Table:
Node: Top1129
Node: Overview1894
Node: Invoking help2man2591
Node: --help recommendations5146
Node: Including text8512
Node: Makefile usage10220
Node: Localised man pages11151
Node: Example12987
Node: Reports15592
Node: Availability16046
End Tag Table