脚本加密

一段用来验证密码的shell
通过这个简单的验证密码的shell脚本，来熟悉下while和if的用法，也许对您有点用处，当然还有更多的实现方法，比如用until什么的

#!/bin/sh
# hao32 repasswd

while [ -z $pass1 ] || [ -z $pass2 ] || [ $pass1 != $pass2 ]
do
        read -p "Please type your passwd :" pass1
        read -p "Please conform your passwd :" pass2
            if [ -z $pass1 ]; then
            echo "passwd should not be empty!"
            elif [ $pass1 != $pass2 ]; then
            echo "passwd not match! retype again!"
            fi
done

echo "Ok, you passed"