Provided by: libuser_0.62~dfsg-0.1ubuntu2_amd64 
NAME
lchage - Display or change user password policy
SYNOPSIS
lchage [OPTION]... user
DESCRIPTION
Displays or allows changing password policy of user.
OPTIONS
-d, --date=days
Set the date of last password change to days after Jan 1 1970.
Set days to -1 to disable password expiration (i.e. to ignore --mindays, and --maxdays and related
settings).
Set days to 0 to enforce password change on next login. (This also disables password expiration
until the password is changed.)
-E, --expire=days
Set the account expiration date to days after Jan 1 1970. Set days to -1 to disable account
expiration.
-i, --interactive
Ask all questions when connecting to the user database, even if default answers are set up in
libuser configuration.
-I, --inactive=days
Disable the account after days after password expires (after the user is required to change the
password). Set days to -1 to keep the account enabled indefinitely after password expiration.
-l, --list
Only list current user's policy and make no changes.
-m, --mindays=days
Require at least days days between password changes. Set days to 0 or -1 to disable this
requirement.
If this value is larger than the value set by --maxdays, the user cannot change the pasword.
-M, --maxdays=days
Require changing the password after days since last password change. Set days to -1 to disable
password expiration.
-W, --warndays=days
Start warning the user days before password expires (before the user is required to change the
password). Set days to 0 or -1 to disable the warning.
EXIT STATUS
The exit status is 0 on success, nonzero on error.
NOTES
Note that “account expiration” (set by --expire) is distinct from “password expiration” (set by
--maxdays). Account expiration happens on a fixed date regardless of password changes. Password
expiration is relative to the date of last password change.