Simple tea timer

teatimer.sh

#!/bin/bash

start=$1
now=$(date +%s)

remaining=$(($start - ($(date +%s) - $now)))

while [ $remaining -gt 0 ]; do
    echo -ne "\r\033[K$remaining"
    sleep 1;
    remaining=$(($start - ($(date +%s) - $now)))
done

notify-send "Tea" "Tea"