Converts this entry back to a /etc/shadow formatted entry
Parses an entry in the shadow file
The user's expiration date
The number of days that the account will be disabled after expiration
Days since UNIX epoch that the password was last changed
Maximum number of days required between password changes
Minumum number of days required between password changes
The user's password
Reserved spot for future use
The user's username
Number of days before password is expiring that the user is warned
An entry in /etc/passwd