Linux更改用户密码

快来打我* 2022-03-20 08:20 419阅读 0赞

### 环境 ###

RedHat Linux 9 + VWWare 7.1.2 + Putty 0.62

### 问题 ###

Linux更改用户密码

### 解决 ###

#### 方法一 ####

1.如果你是以普通用户登录的话，修改自己的密码，使用passwd命令。会让你先输入自己的旧密码，再输入两遍新密码。

[wgb@localhost root]$ passwd
    Changing password for user wgb.
    Changing password for wgb
    (current) UNIX password:
    New password:
    Retype new password:
    passwd: all authentication tokens updated successfully.
    [wgb@localhost root]$
    
    [wgb@localhost root]$ passwd wgb
    passwd: Only root can specify a user name.

2.如果你是root用户登录的话，使用passwd root或者passwd，就可以修改root的密码。直接输入两遍新密码就可以了，不用输入旧密码。

[root@localhost root]# passwd
    Changing password for user root.
    New password:
    BAD PASSWORD: it is too short
    Retype new password:
    passwd: all authentication tokens updated successfully.
    [root@localhost root]#
    
    [root@localhost root]# passwd root
    Changing password for user root.
    New password:
    BAD PASSWORD: it is too short
    Retype new password:
    passwd: all authentication tokens updated successfully.
    [root@localhost root]#

#### 方法二 ####

root用户登录，打开终端，执行echo  "你想设置的密码"  |  passwd  --stdin 用户名

[root@localhost root]# echo "wgb" | passwd --stdin wgb
    Changing password for user wgb.
    passwd: all authentication tokens updated successfully.

### 参考资料 ###

[http://zhidao.baidu.com/question/257557942.html][http_zhidao.baidu.com_question_257557942.html]

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