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