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Created Feb 26, 2019
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countdown script
function countdown {
MIN=$1 && for i in $(seq $(($MIN*60)) -1 1); do
printf "\r%02d:%02d:%02d" $((i/3600)) $(( (i/60)%60)) $((i%60)); sleep 1;
osascript -e 'display notification "시간이 지났습니다" with title "Countdown" sound name "Clock-chimes"';
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