[root@rhel7 skel]# passwd  -n  -w  -x  rusky

Adjusting aging data for user rusky.

passwd: Success 

说明：

-n : a minimal usage period of  days ---3天后用户才能修改密码

-x : an expiry after  days   ----5天后密码自动过期

-w : a warning is generated  days before expiry  ---离密码过期时间2天内提示用户

[root@rhel7 skel]# chage -l rusky

Last password change                                    : Jun ,

Password expires                                        : Jun ,  --密码过期时间

Password inactive                                       : never

Account expires                                         : never

Minimum number of days between password change          :

Maximum number of days between password change          :

Number of days of warning before password expires       : 

[rusky@rhel7 ~]$ passwd

Changing password for user rusky.

Changing password for rusky.

(current) UNIX password:

You must wait longer to change your password

passwd: Authentication token manipulation error

[rusky@rhel7 ~]$ 

[lxj@rhel7 ~]$ su - rusky

Password:

Warning: your password will expire in  day  --提示密码1天后到期

Last login: Mon Jun  :: EDT  on pts/