-.\" $NetBSD: wtf.6,v 1.5 2002/09/26 16:12:44 wiz Exp $
+.\" $NetBSD: wtf.6,v 1.19 2015/04/22 15:04:57 christos Exp $
.\"
.\" Public Domain
.\"
-.Dd July 21, 1999
+.Dd April 22, 2015
.Dt WTF 6
.Os
.Sh NAME
.Nm wtf
-.Nd translates acronyms for you
+.Nd look up terms
.Sh SYNOPSIS
.Nm
+.Op Fl f Ar dbfile
+.Op Fl o
.Op Ar is
-.Ar acronym Ar ...
+.Ar term ...
.Sh DESCRIPTION
The
.Nm
-utility displays the expansion of the acronyms
-specified on the command line.
-If the acronym is unknown,
+utility looks up the meaning of one or more
+.Ar term
+operands specified on the command line.
+.Pp
+.Ar term
+will first be searched for as an acronym in the acronym databases,
+which are expected to be in the format
+.Dq acronym[tab]meaning .
+If no match has been found,
.Nm
-will check to see if the acronym is known by the
-.Xr whatis 1
-command.
+will check to see if the term is known by
+.Xr whatis 1 ,
+.Xr pkg_info 1 ,
+or, when called from within a pkgsrc package directory,
+pkgsrc's internal help facility,
+.Dq make help topic=XXX .
.Pp
-If
-.Dq is
-is specified on the command line, it will be ignored, allowing the
+The optional
+.Ar is
+operand will be ignored, allowing the
fairly natural
.Dq wtf is WTF
usage.
+.Pp
+The following option is available:
+.Bl -tag -width flag
+.It Fl f Ar dbfile
+Overrides the default list of acronym databases, bypassing the value of the
+.Ev ACRONYMDB
+variable.
+Unlike this variable the
+.Fl f
+option only accepts one file name as an argument,
+but it may be given multiple times to specify more than one file to use.
+.It Fl o
+Include acronyms that could be considered offensive to some.
+Please consult
+.Xr fortune 6
+for more information about the
+.Fl o
+flag.
+.El
.Sh ENVIRONMENT
.Bl -tag -width ACRONYMDB
.It Ev ACRONYMDB
-The default acronym database may be overridden by setting the
+The default list of acronym databases may be overridden by setting the
environment variable
.Ev ACRONYMDB
-to the name of a file in the proper format (acronym[tab]meaning).
+to the name of one or more space-separated file names of
+acronym databases.
.El
.Sh FILES
-.Bl -tag -width /usr/share/misc/acronyms -compact
+.Bl -tag -width /usr/share/misc/acronyms.XXXX -compact
.It Pa /usr/share/misc/acronyms
default acronym database.
+.It Pa /usr/share/misc/acronyms-o
+default offensive acronym database.
+.It Pa /usr/share/misc/acronyms.comp
+default computer-related acronym database.
.El
.Sh SEE ALSO
-.Xr whatis 1
+.Xr make 1 ,
+.Xr pkg_info 1 ,
+.Xr whatis 1 ,
+.Xr fortune 6
.Sh HISTORY
.Nm
first appeared in
.Nx 1.5 .
+Initially it only translated acronyms;
+functionality to look up the meaning of terms in other sources was added later.