The following characters are wildcard characters when working on
    any OpenVMS 7.2 or later volume:

    o  The asterisk (*) is a multiple-character wildcard.

    o  The percent sign (%) is a single-character wildcard.

    o  The question mark (?) is a single-character wildcard.

    The percent sign (%) continues to be a single-character wildcard
    to maintain compatibility with existing applications. The percent
    sign (%) may be used as a literal character when preceded by
    the circumflex (^) and is also a literal character in Windows NT
    file names. Therefore, in addition to the percent sign, RMS also
    recognizes the question mark (?) as a single character wildcard.
    The question mark functions identically to the percent sign as
    a wildcard character on OpenVMS 7.2 and later. The percent sign
    and the question mark matches exactly one character in a search
    pattern.