Wildcard_Characters

   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.