/sys$common/syshlp/helplib.hlb COPY, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 input-filespec[,...]

    Specifies the name of an existing file to be copied. The asterisk
    (*)  and the percent sign (%) wildcard characters are allowed.
    If you do not specify the device or directory, the COPY command
    uses your current default device and directory. If you specify
    more than one file, separate the file specifications with either
    commas (,)  or plus signs (+).

 output-filespec

    Specifies the name of the output file into which the input is
    copied.

    You must specify at least one field in the output file
    specification. If you do not specify the device or directory, the
    COPY command uses your current default device and directory. The
    COPY command replaces any other missing fields (file name, file
    type, version number) with the corresponding field of the input
    file specification. If you specify more than one input file, the
    COPY command generally uses the fields from the first input file
    to determine any missing fields in the output file.

    You can use the asterisk (*)  wildcard character in place of
    any two of the following: the file name, the file type, or the
    version number. The COPY command uses the corresponding field in
    the related input file to name the output file.