Description

   The /USER qualifier uses the value of the user name field to
   select records for processing. This field is present in all
   records except file backward link and file forward link records.
   It contains the value <login> for login failure records where the
   user did not give a valid user name.

   The /USER qualifier selects only records that have the specified
   values in the user name field. If you precede the values with
   a minus sign, it selects all records except those with the
   specified values.