帮忙看下这个shell，为什么总是运行出错

[szhen]

#!/bin/bash
#Program:
# This program will show you the user's choice.
#History:
#2012/08/07 szhen first release
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin:./
export PATH
read -p " please input (Y/N): " yn
echo " $yn"
[ "$yn" == "Y" -o "$yn" == "y" ] && echo " ok, continue" && exit 0
[ "$yn" == "N" -o "$yn" == "n" ] && echo " oh, interrupt!" && exit 0
echo " i don't know what is you choice" && exit 0
exit 0
运行时出现unexpected operator,第九行第十行，我的是12.04

[枫叶饭团]

出错你总得把报错写出来啊，我这里没错

[szhen]

枫叶饭团, 运行时出现unexpected operator,第九行第十行，我的是12.04

[YeLee]

没错啊。

[YeLee]

私信就直接忽视算了。

[枫叶饭团]

唯一可能出错的就是==了，把==换成-eq

[funicorn]

你用sh运行，出错也正长

[YeLee]

不会又是dash吧。

[lilydjwg]

unexpected operator？which one？

[szhen]

枫叶饭团, 试过了不行，刚试了下一个等号的话就可以，谢谢你

[神剑闯江湖]

这是鸟哥的例子，注意空格

[过七不候]

显然是少了一个空格，在第9行的[]中。