Sort users in /etc/passwd by timestamp of last password reset
 

is it possible to sort users in /etc/passwd by timestamp of the last time their password was reset?

Of course no, as no timestamp is registered in this file.

Unless yours have a specific format that includes it. If yes, please tell us what is this format.

try this:

passwd -S <User_Name>

To use against /etc/passwd i guess you can create a small script to loop and use in conjunction with the passwd -S

My system has this output:

<user_name> PS 1998-06-01 0 99999 7 -1 (Password set, MD5 crypt.)

Which means last password change for the user was June 1, 1998.

Thanks. Is that the timestamp when the account was created or when the password was last set?

To know that, just type: