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Revision 1.4, Mon Feb 20 18:25:51 2012 UTC (12 years, 1 month ago) by joerg
Branch: MAIN
CVS Tags: yamt-pagecache-base4
Branch point for: yamt-pagecache
Changes since 1.3: +3 -2 lines

Add reference to whatis(1). From Abhinav Upadhyay.

.\" $NetBSD: apropos.1,v 1.4 2012/02/20 18:25:51 joerg Exp $
.\"
.\" Copyright (c) 2011 Abhinav Upadhyay <er.abhinav.upadhyay@gmail.com>
.\" All rights reserved.
.\"
.\" This code was developed as part of Google's Summer of Code 2011 program.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in
.\"    the documentation and/or other materials provided with the
.\"    distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
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.Dd February 20, 2012
.Dt APROPOS 1
.Os
.Sh NAME
.Nm apropos
.Nd search the complete content of all man pages
.Sh SYNOPSIS
.Nm
.Op Fl 123456789Ccp
.Op Fl n Ar Number of results
.Op Fl S Ar machine
.Op Fl s Ar section
.Ar query
.Sh DESCRIPTION
The
.Nm
utility performs a full text search over the complete content of all man pages.
It uses the FTS engine of Sqlite to perform the search.
The database is created with the help of
.Xr makemandb 8
utility.
.Pp
This implementation of the
.Nm
utility is more sophisticated than the classical version of
.Nm .
Like modern search applications, it uses advanced techniques like stemming
and term weighting to rank the matching results in decreasing order of
relevance.
By default
.Nm
will only display the top 10 matches in the output.
.Pp
Quotes are optional for specifying multiword queries.
.Pp
It supports the following options:
.Bl -tag -width indent
.It Fl 1
Search only within section 1 manual pages.
.It Fl 2
Search only within section 2 manual pages.
.It Fl 3
Search only within section 3 manual pages.
.It Fl 4
Search only within section 4 manual pages.
.It Fl 5
Search only within section 5 manual pages.
.It Fl 6
Search only within section 6 manual pages.
.It Fl 7
Search only within section 7 manual pages.
.It Fl 8
Search only within section 8 manual pages.
.It Fl 9
Search only within section 9 manual pages.
.It Fl C
Do not show the context of the match.
.It Fl c
Do show the context of the match (default).
.It Fl n
Output up to the specified number of search results.
The default limit is 10.
.It Fl p
Display all matching results and pipe them through a pager (defaulting to
.Xr more 1 ) .
.It Fl S Ar machine
Limit the search to the pages for the specified machine architecture.
By default pages for all architectures are shown in the search results.
.It Fl s Ar section
Restrict the search to the specified section of the manual.
By default, pages from all section are shown.
This option is for backwards compatibility with the classic version of apropos,
using it is equivalent to using the
.Op 123456789
options directly.
.El
.Sh FILES
.Bl -hang -width -compact
.It Pa /var/db/man.db
The Sqlite FTS database which contains an index of the manual pages.
.El
.Sh SEE ALSO
.Xr man 1 ,
.Xr whatis 1 ,
.Xr makemandb 8
.Sh AUTHORS
.An Abhinav Upadhyay