diff options
Diffstat (limited to 'usr.bin/grdc/grdc.6')
| -rw-r--r-- | usr.bin/grdc/grdc.6 | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/usr.bin/grdc/grdc.6 b/usr.bin/grdc/grdc.6 index 3c9660055e2b..7420c8ecbe8b 100644 --- a/usr.bin/grdc/grdc.6 +++ b/usr.bin/grdc/grdc.6 @@ -1,4 +1,4 @@ -.Dd September 25, 2001 +.Dd January 15, 2023 .Dt GRDC 6 .Os .Sh NAME @@ -8,6 +8,9 @@ .Nm .Op Fl st .Op Ar n +.Nm +.Fl c +.Ar n .Sh DESCRIPTION .Nm runs a digital clock made of reverse-video blanks on a curses @@ -17,6 +20,11 @@ With an optional numeric argument it stops after .Ar n seconds (default never). +The clock can act as a countdown timer with the +.Fl c +flag, +.Ar n +specifies the number of seconds to time for. The optional .Fl s flag makes digits scroll as they change. @@ -37,8 +45,17 @@ for more information. If this variable is not set, the time zone is determined based on .Pa /etc/localtime . .El +.Sh NOTES +In countdown timer mode, the specifying of +.Fl n +> 360000 seconds (100 hours) will lead to the counter displaying +incorrect remaining time, however it will time correctly, and +display correctly when the remaining time becomes less than +100 hours. .Sh AUTHORS .An -nosplit .An Amos Shapir , modified for curses by .An John Lupien . +Countdown timer mode by +.An Gavin Atkinson . |