Output is sort by user ID, with user logins following system logins. The default output consists of login, user ID, primary group, primary group ID and comment field formatted into columns. Displays two account expiration fields.
Display logins with duplicate UIDs.
Show multiple group membership data. Display with alternate format of one line of colon separated fields. Display all user logins. Display extended information about selected users. This extended information includes home directory, login shell and password aging data, each on its own line.