CREATE DIRECTORY ABC AS '/abc';


    DECLARE
      fileHandler UTL_FILE.FILE_TYPE;
    BEGIN
      fileHandler := UTL_FILE.FOPEN('ABC', 'test_file.txt', 'W');
      UTL_FILE.PUTF(fileHandler, 'Writing to a filen');
      UTL_FILE.FCLOSE(fileHandler);
    END;

29283. 00000 -  "invalid file operation"
*Cause:    An attempt was made to read from a file or directory that does
           not exist, or file or directory access was denied by the
           operating system.
*Action:   Verify file and directory access privileges on the file system,
           and if reading, verify that the file exists.