Countdown

The program sleeps for a specified time, and send a system notification.

Usage

``` Send a system-wide notification after a countdown

USAGE: countdown [FLAGS] [text]

ARGS: A float number for the countdown, unit being second, unless --minute is specified. A short message to show in the notification. [default: Timer]

FLAGS: -h, --help Prints help information -m, --minute Change the unit of time to minute, instead of second. -V, --version Prints version information ```