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libexec man page fleshing. again, bored on the plane home.

.\"	$OpenBSD: makewhatis.8,v 1.9 2000/10/30 17:46:08 aaron Exp $
.\"	$NetBSD: makewhatis.8,v 1.2.2.1 1997/11/10 19:57:45 thorpej Exp $
.\"
.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Robert Dobbs <banshee@gabriella.resort.com>.
.\"
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.\" modification, are permitted provided that the following conditions
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.\"    must display the following acknowledgement:
.\"        This product includes software developed by the NetBSD
.\"        Foundation, Inc. and its contributors.
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.\"    from this software without specific prior written permission.
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.Dd October 17, 1997
.Dt MAKEWHATIS 8
.Os
.Sh NAME
.Nm makewhatis
.Nd create a whatis.db database
.Sh SYNOPSIS
.Nm makewhatis
.Op Fl p
.Op Ar manpath ...
.Nm makewhatis
.Op Fl p
.Fl d Ar manpath
.Ar files ...
.Nm makewhatis
.Op Fl p
.Fl t
.Ar files
.Sh DESCRIPTION
.Nm
strips the NAME lines from compiled or raw
.Xr man 1
pages and creates
a whatis.db database (that is, a subject index)
for use in
.Xr apropos 1
or with
.Xr man 1 's
.Fl k
option.
If
.Ar manpath
is unspecified,
.Nm
by default creates databases for each directory prefixed by
the _whatdb keyword in
.Pa /etc/man.conf .
Man pages compressed with
.Xr compress 1
and
.Xr gzip 1
are uncompressed before processing.
.Pp
If the
.Fl d
option is used,
.Nm
merges the description of
.Ar files
with an existing
.Pa whatis.db
database in
.Ar manpath .
.Pp
If the 
.Fl p
option is used,
.Nm
is less forgiving and warns about incorrect man pages.
.Pp
The
.Fl t
option can be used to check a set of potential man pages without
changing any 
.Pa whatis.db
database.
.Sh FILES
.Bl -tag -width /etc/man.conf -compact
.It Pa whatis.db
index to man pages in directory,
.It Pa /etc/man.conf
man configuration information.
.El
.Sh BUGS
.Nm
should parse 
.Pa /etc/man.conf
and deal with extra configuration information.
In particular, it does not handle
.Xr nroff 1
me format.
Likewise, its use of
heuristics to retrieve subjects from most man pages is not 100% accurate.
.Sh SEE ALSO
.Xr nroff 1 , 
.Xr man 1 ,
.Xr man.conf 5 .