#!/bin/bash echo -n count: tput sc count=0; while true; do if [ $count -lt 40 ]; then let count++; sleep 1; tput rc tput ed echo -n $count; else exit 0; fi done
tput sc 存储光标位置;
tput rc 恢复光标位置;
tput ed 清除从当前光标位置到行尾之间的所有内容