What command would provide information about a user’s password expiration and aging policies?

The command that provides detailed information about a user's password expiration and aging policies is chage -l username. This command displays various password-related attributes, including the last time the password was changed, the password expiration date, and the minimum and maximum number of days between password changes, among other details.

This information is essential for systems administrators managing user accounts, as it helps ensure that password policies comply with security standards and that users are prompted to update their passwords when necessary. By understanding the parameters of a user’s account, administrators can better manage security and user access.

While the other options may involve user account management, they do not specifically provide the level of detail related to password expiration and aging policies that chage -l username does. For instance, passwd -S username provides the status of the password but not the complete aging policies. useradd -e username defines an expiration date for the user's account upon creation rather than querying existing policies. Finally, pwaudit username is not a standard command for checking password aging policies in most Linux distributions.