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Ubuntu Documentation > Ubuntu 9.04 > Ubuntu Server Guide > Security > User Management states that there is a default minimum password length for Ubuntu:

By default, Ubuntu requires a minimum password length of 4 characters

Say the password is to be modified by the user using passwd. Is there a command for displaying the current password policies for a user (such as the chage command displays the password expiration information for a specific user)?

> sudo chage -l SomeUserName
Last password change                                : May 13, 2010
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

This is rather than examining various places that control the policy and interpreting them since the process could contain errors. A command that reports the composed policy would be used to check the policy setting steps.

This question, How to display password policy information for a user (Ubuntu)?, was posted on superuser but the request for it to be migrated to here was refused.

share|improve this question
Note: this question has some good answers on superuser already. – Chriki Dec 23 '15 at 14:04

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