The post is about to show account aging information.To get details of user account password expiration ,we use the command chage.
With chage command use the option -l or --list.

The chage program requires a shadow password file to be available.The absolute path of shadow file is /etc/shadow.It is notable that /etc/shadow file has password information in encrypted format. In other words, chage command helps to get information from /etc/shadow file.

Note: chage command is also used for setting account and password expiration date-time.For setting these information,the user should be root or privileged user.
Only -l is the option which can also be used by unprivileged user.

Syntax:

chage -l User-Name

Example: In this example,we will view the account aging information of user called sharad

[root@localhost ~]# chage -l sharad
Last password change					: Mar 27, 2014
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
[root@localhost ~]# 

For more information read the manual page of chage by running the command man chage