-.\" $Id: whatis.1,v 1.7 2011/12/25 19:35:44 kristaps Exp $
+.\" $Id: whatis.1,v 1.9 2012/03/25 00:48:47 kristaps Exp $
.\"
-.\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+.\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: December 25 2011 $
+.Dd $Mdocdate: March 25 2012 $
.Dt WHATIS 1
.Os
.Sh NAME
for manuals containing the word
.Ar name
in their page name, ignoring case.
-It returns the header lines from all matching pages.
-You can then use the
-.Xr man 1
-command to get more information.
.Pp
By default,
.Nm
.Xr mandocdb 8
databases in the default paths stipulated by
.Xr man 1 .
+If standard output is a TTY, a result may be selected from a list and
+its manual displayed with the pager.
.Pp
The options are as follows:
.Bl -tag -width Ds
.Pp
.D1 title(cat/arch) \- description
.Pp
-Resulting manuals may be accessed as
-.Pp
-.Dl $ man \-s sec title
+If on a TTY, results are prefixed with a numeric identifier.
.Pp
-If an architecture is specified in the output, use
+.D1 [index] title(cat) \- description
.Pp
-.Dl $ man \-s sec \-S arch title
+One may choose a manual be entering the index at the prompt.
+Valid choices are displayed using
+.Ev MANPAGER ,
+or failing that ,
+.Ev PAGER
+or just
+.Xr more 1 .
+Source pages are formatted with
+.Xr mandoc 1 ;
+preformatted pages with
+.Xr cat 1 .
.Pp
.Nm
is identical to running
.Dl $ apropos -- -i 'Nm~[[:<:]]term[[:>:]]'
.Sh ENVIRONMENT
.Bl -tag -width Ds
+.It Ev MANPAGER
+Default pager for manuals.
+If this is unset, falls back to
+.Ev Pager .
+.It Ev PAGER
+The second choice for a manual pager.
+If this is unset, use
+.Xr more 1 .
.It Ev MANPATH
Colon-separated paths modifying the default list of paths searched for
manual databases.