Change information about user password expirations. If run with no option flags, chage prompts for values to be entered; you may also use option flags to change or view information. Requires a shadow password file. An unprivileged user can only run chage with the -l option.
Date of last password change. This may be expressed as a date in YYYY-MM-DD format, or as the number of days between January 1, 1970 and the last password change.
Set the date when the account will be locked. This is not a date for password expiration, but for account expiration. It may be expressed in YYYY-MM-DD format or as a number of days since January 1, 1970.
If a password expires and the user does not log in for this number of days, the account will be locked and the user must contact a system administrator before logging in. Set to 0 to disable the feature.
This flag is used without any others and causes chage to display the current password expiration attributes for the user.
Specify the minimum number of days between password changes. Default is zero, meaning that the user may change the password at any time.
Maximum number of days between password changes.
The number of days before password expiration that a user will be warned to change passwords.