timer, a general-purpose countdown timer.
Usage:
timer [flags] time[ s | m | h ]
Flags:
--persistent, -p continue beeping until user hits return.
--quiet, -q do not send system beep.
--tea this is a tea timer.
--oven this is an oven timer.
--laundry this is a laundry timer.
Examples:
# Run a timer for 30 seconds:
timer 30
# Run a tea timer for 3 minutes:
timer --tea 3m
# Run a laundry timer for 1 hour:
timer --laundry 1h