/CONFIRM
       /NOCONFIRM (default)

    Note: Do not include any HBMM-specific qualifiers in a command
    with this qualifier; doing so causes the command to fail.

    Specifies whether a query is made before each merge operation to
    confirm that the operation should be performed on the designated
    shadow set.

    This qualifier can be used only in conjunction with the /DEMAND_
    MERGE qualifier.

    The following responses are valid in response to the query:

    o  Affirmative: YES, TRUE, or 1

    o  Negative: NO, FALSE, 0 (zero), or pressing the Return key.

    o  End the process: QUIT or Ctrl/Z

    o  When you enter ALL, the command continues to process, but no
       further prompts are given.

    You can enter word responses in uppercase or lowercase letters,
    and words can be abbreviated to one or more letters. If you enter
    an illegal response, DCL redisplays the prompt. (See the SET
    SHADOW examples.)