Shell 倒计时脚本

#!/bin/bash # author : kl #倒计时脚本 read -p '请输入时间: ' -s o for ((i=$o;i>=0;i--)) do if [ "$i" = "0" ] then echo "Time is over. " exit fi ((Minute=$i/60)) ((Second=$i%60)) echo "$Minute : $Second" sleep 1 clear done