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45 lines
920 B
Groff
45 lines
920 B
Groff
.Dd September 25, 2001
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.Dt GRDC 6
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.Os
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.Sh NAME
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.Nm grdc
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.Nd grand digital clock (curses)
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.Sh SYNOPSIS
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.Nm
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.Op Fl st
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.Op Ar n
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.Sh DESCRIPTION
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.Nm
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runs a digital clock made of reverse-video blanks on a curses
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compatible VDU screen.
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With an optional numeric argument
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.Ar n
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it stops after
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.Ar n
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seconds (default never).
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The optional
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.Fl s
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flag makes digits scroll as they change.
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The optional
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.Fl t
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flag tells grdc to output the time in a 12-hour format.
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In this curses mode implementation,
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the scrolling option has trouble keeping up.
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.Sh ENVIRONMENT
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.Bl -tag -width Ds
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.It Ev TZ
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The time zone to use for displaying the time.
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It is normally specified as a pathname relative to
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.Pa /usr/share/zoneinfo ,
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though see
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.Xr tzset 3
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for more information.
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If this variable is not set, the time zone is determined based on
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.Pa /etc/localtime .
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.El
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.Sh AUTHORS
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.An -nosplit
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.An Amos Shapir ,
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modified for curses by
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.An John Lupien .
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