Guys, I need to understand the options for useradd (as per below) My needs are this. I want to add a user, with a default password and give then a grace period of say 7 days before they have to change their password else their account is disabled. I don't care about maximum days. (since they are syncing their passwords with the Windows Domain) So.. I take it I need useradd -m 7 is enough for my needs? -m days Specify the minimum number of days between which the user must change passwords. If the value is 0, the password does not expire .-M days Specify the maximum number of days for which the password is valid. When the number of days specified by this option plus the number of days specified with the -d option is less than the current day, the user must change passwords before using the account.-d daysSpecify the number of days since January 1, 1970 the password was changed. -I days Specify the number of inactive days after the password expiration before locking the account. If the value is 0, the account is not locked after the password expires. --