.\"***************************************************************************
-.\" Copyright (c) 1998-2016,2017 Free Software Foundation, Inc. *
+.\" Copyright 2018,2020 Thomas E. Dickey *
+.\" Copyright 1998-2016,2017 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: clear.1,v 1.17 2017/08/19 14:12:50 tom Exp $
+.\" $Id: clear.1,v 1.23 2020/02/02 23:34:34 tom Exp $
.TH @CLEAR@ 1 ""
.\" these would be fallbacks for DS/DE,
.\" but groff changed the meaning of the macros.
.de NS
-.ie \n(.sp
+.ie n .sp
.el .sp .5
-.ie \n(.in +4
+.ie n .in +4
.el .in +2
.nf
.ft C \" Courier
.de NE
.fi
.ft R
-.in -4
+.ie n .in -4
+.el .in -2
..
.ie \n(.g .ds `` \(lq
.el .ds `` ``
.ie \n(.g .ds '' \(rq
.el .ds '' ''
.de bP
-.IP \(bu 4
+.ie n .IP \(bu 4
+.el .IP \(bu 2
..
.ds n 5
.SH NAME
.br
.SH DESCRIPTION
\fB@CLEAR@\fR clears your screen if this is possible,
-including its scrollback buffer (if the extended \*(``E3\*('' capability is defined).
+including its scrollback buffer
+(if the extended \*(``E3\*('' capability is defined).
\fB@CLEAR@\fR looks in the environment for the terminal type
given by the environment variable \fBTERM\fP,
and then in the
Normally this option is
unnecessary, because the default is taken from the environment
variable \fBTERM\fR.
+If \fB\-T\fR is specified, then the shell
+variables \fBLINES\fR and \fBCOLUMNS\fR will also be ignored.
.TP
.B \-V
reports the version of ncurses which was used in this program, and exits.
although it was cited in the Red Hat bug report (#683733)
which led to the change.
.bP
-Again, a few other terminal developers adopted the feature. But the
+Again, a few other terminal developers adopted the feature.
+But the
next relevant step was a change to the \fBclear\fP program in 2013
to incorporate this extension.
.bP