filespec

    The file specification of the transaction log whose contents you
    want to display.

    The DUMP command uses the following defaults:

    o  If you omit the disk and directory, the DUMP command looks
       for the transaction log in the directories pointed to by the
       logical SYS$JOURNAL, which must be defined in executive mode
       in the system logical name table.

    o  If you omit the file type, the DUMP command uses .LM$JOURNAL.