2013-12-06 12:04:52 +01:00
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.\" $Vendor-Id: whatis.1,v 1.8 2012/03/24 01:54:43 kristaps Exp $
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2013-10-08 18:05:29 +02:00
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.\"
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2013-12-06 12:04:52 +01:00
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.\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
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2013-10-08 18:05:29 +02:00
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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2013-12-06 12:04:52 +01:00
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.Dd March 24, 2012
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2013-10-08 18:05:29 +02:00
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.Dt WHATIS 1
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.Os
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.Sh NAME
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.Nm whatis
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.Nd search for manual pages by page names
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.Sh SYNOPSIS
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.Nm
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.Op Fl C Ar file
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.Op Fl M Ar manpath
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.Op Fl m Ar manpath
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.Op Fl S Ar arch
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.Op Fl s Ar section
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.Ar name ...
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.Sh DESCRIPTION
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The
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.Nm
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utility searches databases generated by
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.Xr mandocdb 8
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for manuals containing the word
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.Ar name
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in their page name, ignoring case.
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It returns the header lines from all matching pages.
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You can then use the
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.Xr man 1
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command to get more information.
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.Pp
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By default,
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.Nm
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searches for
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.Xr mandocdb 8
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databases in the default paths stipulated by
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.Xr man 1 .
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If standard output is a TTY, a result may be selected from a list and
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its manual displayed with the pager.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl C Ar file
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Specify an alternative configuration
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.Ar file
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in
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.Xr man.conf 5
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format.
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.It Fl M Ar manpath
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Use the colon-separated
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.Ar manpath
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instead of the default list of paths searched for
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.Xr mandocdb 8
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databases.
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Invalid paths, or paths without manual databases, are ignored.
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.It Fl m Ar manpath
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Prepend the colon-separated
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.Ar manpath
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to the list of paths searched for
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.Xr mandocdb 8
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databases.
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Invalid paths, or paths without manual databases, are ignored.
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.It Fl S Ar arch
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Search only for a particular architecture.
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.It Fl s Ar cat
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Search only for a manual section.
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See
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.Xr man 1
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for a listing of manual sections.
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.El
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.Pp
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Results are sorted by manual title, with output formatted as
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.Pp
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.D1 title(sec) \- description
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.Pp
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Where
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.Qq title
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is the manual's title (note multiple manual names may exist for one
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title),
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.Qq sec
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is the manual section, and
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.Qq description
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is the manual's short description.
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If an architecture is specified for the manual, it is displayed as
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.Pp
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.D1 title(cat/arch) \- description
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.Pp
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If on a TTY, results are prefixed with a numeric identifier.
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.Pp
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.D1 [index] title(cat) \- description
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.Pp
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One may choose a manual be entering the index at the prompt.
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Valid choices are displayed using
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.Ev MANPAGER ,
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or failing that ,
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.Ev PAGER
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or just
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.Xr more 1 .
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Source pages are formatted with
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.Xr mandoc 1 ;
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preformatted pages with
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.Xr cat 1 .
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.Pp
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.Nm
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is identical to running
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.Xr apropos 1
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as follows:
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.Pp
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.Dl $ apropos -- -i 'Nm~[[:<:]]term[[:>:]]'
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.Sh ENVIRONMENT
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.Bl -tag -width Ds
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.It Ev MANPAGER
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Default pager for manuals.
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If this is unset, falls back to
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.Ev Pager .
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.It Ev PAGER
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The second choice for a manual pager.
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If this is unset, use
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.Xr more 1 .
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.It Ev MANPATH
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Colon-separated paths modifying the default list of paths searched for
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manual databases.
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Invalid paths, or paths without manual databases, are ignored.
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Overridden by
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.Fl M .
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If
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.Ev MANPATH
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begins with a
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.Sq \&: ,
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it is appended to the default list;
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else if it ends with
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.Sq \&: ,
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it is prepended to the default list; else if it contains
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.Sq \&:: ,
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the default list is inserted between the colons.
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If none of these conditions are met, it overrides the default list.
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.El
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.Sh FILES
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.Bl -tag -width "/etc/man.conf" -compact
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.It Pa whatis.db
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name of the
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.Xr mandocdb 8
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keyword database
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.It Pa whatis.index
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name of the
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.Xr mandocdb 8
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filename database
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.It Pa /etc/man.conf
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default
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.Xr man 1
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configuration file
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr apropos 1 ,
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.Xr man 1 ,
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.Xr man.conf 5 ,
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.Xr mandocdb 8
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Bx 2 .
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It was rewritten from scratch as part of the
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.Xr mandocdb 8
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project for
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.Ox 5.1 .
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.Sh AUTHORS
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.An -nosplit
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.An Bill Joy
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wrote the original
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.Bx
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.Nm
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in 1979.
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The current version was written by
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.An Kristaps Dzonsons ,
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.Mt kristaps@bsd.lv .
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