Command option used to specify the user$$s default login shell.

Command option used to unlock specific user accounts.

Command option used to change the user$$s login name.

Command option used to change the number of days the password is valid for the specified user account.

Command option used to display all password expiration information for the specified user account.

Command option used to force the GID to what$$s entered at the command line.

Command option used to add a home directory for a new user.

Command option used to remove a specified member from the group account.

Command option used to allow assignment of a duplicate GID.