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+.\"***************************************************************************
+.\" Copyright (c) 1998-2003,2006 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            *
+.\" "Software"), to deal in the Software without restriction, including      *
+.\" without limitation the rights to use, copy, modify, merge, publish,      *
+.\" distribute, distribute with modifications, sublicense, and/or sell       *
+.\" copies of the Software, and to permit persons to whom the Software is    *
+.\" furnished to do so, subject to the following conditions:                 *
+.\"                                                                          *
+.\" The above copyright notice and this permission notice shall be included  *
+.\" in all copies or substantial portions of the Software.                   *
+.\"                                                                          *
+.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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+.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+.\"                                                                          *
+.\" Except as contained in this notice, the name(s) of the above copyright   *
+.\" holders shall not be used in advertising or otherwise to promote the     *
+.\" sale, use or other dealings in this Software without prior written       *
+.\" authorization.                                                           *
+.\"***************************************************************************
+.\"
+.\" $Id: gdc.6,v 1.3 2006/04/22 23:02:15 tom Exp $
+.TH GDC 6
+.SH NAME
+gdc \- grand digital clock (curses)
+.SH SYNOPSIS
+.B gdc
+[-n] [
+[-s] [
+.I n
+]
+.SH DESCRIPTION
+.I Gdc
+runs a digital clock made of reverse-video blanks on a terminal screen.
+If the terminal supports color, the clock is drawn in red.
+You can make the clock stop, pause or resume by pressing a ``q'',
+``s'' or space, respectively.
+.SH OPTIONS
+.TP
+.B -n
+redirects input to /dev/null, making it ignore the stop/pause commands.
+You can still stop it by pressing the interrupt key.
+.TP
+.B -s
+makes digits scroll as they change.
+When running on a fast display, the program breaks up the scrolling into
+subsecond repaints, making the operation appear smooth.
+.PP
+With an optional numeric argument
+.I num
+it stops after
+.I num
+seconds.
+Normally it runs "forever" (counting down from 2 billion seconds).
+.SH AUTHOR
+Amos Shapir, modified for curses by John Lupien.
+Improvements for ncurses by Thomas Dickey.