second=10
echo -en "\n****倒计时$second秒开始****\t\t"
for i in $(seq $second -1 1)
do
       #echo -ne "\033[s"
       #echo -ne "\033[1;31m$i \033[0m"
       #sleep 1
       #echo -ne "\033[u"
       echo -ne "\033[1;31m\b\b\b $i \033[0m"
       sleep 1
done

本文出自 “爱武装一辈子” 博客，请务必保留此出处http://menglinux.blog.51cto.com/8733806/1436439