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dotfiles/bin/countdown

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#!/bin/bash
m=${1}
Floor () {
DIVIDEND=${1}
DIVISOR=${2}
RESULT=$(( ( ${DIVIDEND} - ( ${DIVIDEND} % ${DIVISOR}) )/${DIVISOR} ))
echo ${RESULT}
}
Timecount(){
s=${1}
HOUR=$( Floor ${s} 60/60 )
s=$((${s}-(60*60*${HOUR})))
MIN=$( Floor ${s} 60 )
SEC=$((${s}-60*${MIN}))
while [ $HOUR -ge 0 ]; do
while [ $MIN -ge 0 ]; do
while [ $SEC -ge 0 ]; do
printf "%02d:%02d:%02d\033[0K\r" $HOUR $MIN $SEC
SEC=$((SEC-1))
sleep 1
done
SEC=59
MIN=$((MIN-1))
done
MIN=59
HOUR=$((HOUR-1))
done
}
Timecount $m