The UIC (User Identification Code) is a 2-part number or
       text string that identifies a user and determines his or her
       relationship to other users on the system. The UIC determines the
       ownership of files and is assigned by your system manager. UICs
       can be either numeric or alphanumeric:

       o  A numeric UIC consists of an octal group number and an octal
          member number.

          You can use the asterisk (*) wildcard in place of the group
          number to identify all group numbers and in place of the
          member number group to identify all member numbers.

       o  An alphanumeric UIC is a text string consisting of a member
          name and, optionally, a group name.

          You can use the asterisk (*) wildcard in place of the member
          name in an alphanumeric UIC but not in place of the group
          name.

       The UIC is enclosed in square brackets or angle brackets. A comma
       separates the two parts of the UIC. The first part of the UIC
       identifies the group of users a person belongs to. Group members
       share the same first number or group name in their UICs. You can
       control access to files according to UIC group numbers or group
       names. The second part of the UIC identifies the individual user
       in a group.