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linux chage命令簡(jiǎn)介：

chage命令用于密碼實(shí)效管理，該是用來(lái)修改帳號(hào)和密碼的有效期限。它可以修改賬號(hào)和密碼的有效期。對(duì)于chage命令的描述如下所示：

the chage command changes the number of days between password changes and the date of the last password change. this information is used by the system to determine when a user must change his/her password

命令語(yǔ)法：

chage [options] user

命令參數(shù)：

使用示例：

1: 查看chage命令的幫助信息

[root@db-server ~]#man chage
[root@db-server ~]# info chage
[root@db-server ~]# chage -h
usage: chage [options] user

options:

-d, --lastday last_day set last password change to last_day
-e, --expiredate expire_date set account expiration date to expire_date
-h, --help display this help message and exit
-i, --inactive inactive set password inactive after expiration
to inactive
-l, --list show account aging information
-m, --mindays min_days set minimum number of days before password
change to min_days
-m, --maxdays max_days set maximim number of days before password
change to max_days
-w, --warndays warn_days set expiration warning days to warn_days

2：查看MySQL用戶以及密碼的有效期

[root@db-server ~]# chage -l mysql
last password change : mar 26, 2015
password expires : never
password inactive : never
account expires : never
minimum number of days between password change : -1
maximum number of days between password change : -1
number of days of warning before password expires : -1
[root@db-server ~]#

3：設(shè)置mysql用戶60天后密碼過(guò)期，至少7天后才能修改密碼，密碼過(guò)期前7天開(kāi)始收到告警信息。

[root@db-server ~]# chage -m 60 -m 7 -w 7 mysql
you have new mail in /var/spool/mail/root
[root@db-server ~]# chage -l mysql
last password change : mar 26, 2015
password expires : may 25, 2015
password inactive : never
account expires : never
minimum number of days between password change : 7
maximum number of days between password change : 60
number of days of warning before password expires : 7
[root@db-server ~]#
clip_image001

4：強(qiáng)制新建用戶第一次登陸時(shí)修改密碼

[root@db-server home]# useradd test
[root@db-server home]# passwd test
changing password for user test.
new unix password:
retype new unix password:
passwd: all authentication tokens updated successfully.
[root@db-server home]# chage -d 0 test
you have new mail in /var/spool/mail/root
[root@db-server home]# chage -l test
last password change : password must be changed
password expires : never
password inactive : never
account expires : never
minimum number of days between password change : 0
maximum number of days between password change : 99999
number of days of warning before password expires : 7

下面給大家介紹linux chage命令

功能：修改帳號(hào)和密碼的有效期限

用法：chage[-l][-m mindays][-m maxdays][-i inactive][-e expiredate][-w warndays][-d lastdays]username

參數(shù)：

-l：列出用戶的以及密碼的有效期限
-m:修改密碼的最小天數(shù)
-m：修改密碼的最大天數(shù)
-i：密碼過(guò)期后，鎖定帳號(hào)的天數(shù)
-d：指定密碼最后修改的日期
-e：有效期，0表示立即過(guò)期，-1表示永不過(guò)期
-w：密碼過(guò)期前，開(kāi)始警告天數(shù)

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