1.\" $FreeBSD$ 2.Dd September 25, 2001 3.Dt GRDC 6 4.Os 5.Sh NAME 6.Nm grdc 7.Nd grand digital clock (curses) 8.Sh SYNOPSIS 9.Nm 10.Op Fl st 11.Op Ar n 12.Sh DESCRIPTION 13.Nm 14runs a digital clock made of reverse-video blanks on a curses 15compatible VDU screen. 16With an optional numeric argument 17.Ar n 18it stops after 19.Ar n 20seconds (default never). 21The optional 22.Fl s 23flag makes digits scroll as they change. 24The optional 25.Fl t 26flag tells grdc to output the time in a 12-hour format. 27In this curses mode implementation, 28the scrolling option has trouble keeping up. 29.Sh ENVIRONMENT 30.Bl -tag -width Ds 31.It Ev TZ 32The time zone to use for displaying the time. 33It is normally specified as a pathname relative to 34.Pa /usr/share/zoneinfo , 35though see 36.Xr tzset 3 37for more information. 38If this variable is not set, the time zone is determined based on 39.Pa /etc/localtime . 40.El 41.Sh AUTHORS 42.An -nosplit 43.An Amos Shapir , 44modified for curses by 45.An John Lupien . 46