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