FIND

 The FIND statement positions a direct access file at a particular
 record and sets the associated variable of the file to that record
 number.  It is comparable to a direct access READ statement with no
 I/O list, and can open an existing file.  No data transfer takes
 place.  Statement format:

    FIND (u'r [,ERR=s] [,IOSTAT=ios])
    FIND ([UNIT=]u, REC=r [,ERR=s] [,IOSTAT=ios])

    u     Is a logical unit number.  It must refer to a
          relative organization file.

    r     Is the direct access record number.  It cannot 
          be less than one or greater than the number of 
          records defined for the file.

    s     Is the label of the executable statement that 
          receives control if an error occurs.

    ios   Is an integer variable or integer array element 
          that is defined as a positive integer if an error 
          occurs, and as a zero if no error occurs.