1.\" $FreeBSD: src/games/grdc/grdc.6,v 1.2.12.1 2001/10/02 11:51:49 ru Exp $ 2.\" $DragonFly: src/games/grdc/grdc.6,v 1.4 2006/05/12 14:05:39 swildner Exp $ 3.Dd September 25, 2001 4.Dt GRDC 6 5.Os 6.Sh NAME 7.Nm grdc 8.Nd grand digital clock (curses) 9.Sh SYNOPSIS 10.Nm 11.Op Fl s 12.Op Fl d Ar msecs 13.Op Ar n 14.Sh DESCRIPTION 15.Nm 16displays a digital clock made of reverse-video blanks 17centered on a curses-compatible terminal. 18.Pp 19By default, the clock runs indefinitely. 20When the optional numeric argument 21.Ar n 22is given, it stops after 23.Ar n 24seconds. 25.Pp 26The optional 27.Fl s 28flag makes digits scroll as they change. 29Over slow links, the scrolling option may have trouble keeping up. 30.Pp 31The default time taken to scroll the digits into view is 120 32milliseconds. 33The 34.Fl d 35option, which implies 36.Fl s , 37may be given to explicitly set the scroll duration. 38The maximum scroll duration is effectively 5 seconds. 39.Sh AUTHORS 40.An -nosplit 41.An Amos Shapir , 42modified for curses by 43.An John Lupien . 44