Linux->User Manager

1、不与Linux交互，直接添加用户密码

[root@DG1 shell]# useradd user01
[root@DG1 shell]# echo 123456 | /usr/bin/passwd --stdin user01
更改用户 user01 的密码 。
passwd： 所有的身份验证令牌已经成功更新。

2、批量添加、删除用户脚本

#!bin/sh
# Author:ArcerZhang <E-mail:arcerzhang@163.com>
# The script to add user

# /etc/passwd info
echo "please input username:"
read name
echo "please input number:"
read num

n=1
while [ $n -le $num ]
do
        /usr/sbin/useradd $name$n
        n=`expr $n + 1`
done

# /etc/shadow info
echo "please input the password:"
read passwd
m=1
while [ $m -le $num ]
do
        echo $passwd | /usr/bin/passwd --stdin $name$m
        m=`expr $m + 1`
done

#!/bin/sh
echo "please input username:"
read name
echo "please input number:"
read num

sum=0
while [ $sum -lt $num ]
do
        sum=`expr $sum + 1`
        /usr/sbin/userdel -r $name$sum
done