看微博上大家在搞就搞了一个

#!/bin/bas
h
stty erase ^H
hello(){
echo -e "\e[1;
31m欢迎使用铁路客运服务中心\e[m"
echo "======================="
echo  -e -n "\e[1;
34m用户名:\e[m"
read
echo  -e -n "\e[1;
34m密码:\e[m"
stty -
echo
read
stty echo
```bash
	echo -e "\n=======================\n"

}

wait_2m(){
	second=120
	length=240
```bash
while [ $second -gt 0 ]
do
	sleep 1;
	second=$((second -1 ))
	length=$((length -2 ))
echo -e -n "\r您前面还有\e[1;
32m$length\e[m人在等待,您还需要等待\e[32m$second\e[m秒"
done
echo -e  "\e[1;
32m\n恭喜您,轮到您购票了!\e[m"

}

hello
wait_2m

运行示范

QQ截图20120918224631