The COPY command transfers files from the OpenVMS volume to the
    FAT volume, or from the FAT volume to the OpenVMS volume.

    When executing a group of commands as part of a command
    procedure, the /ERROR quaifier makes it possible to detect the
    failure to copy a file by terminating EFI$CP execution with
    a valid status and with DCL symbols containing the source and
    target filenames.

    No file format or record conversions are performed.

    Wildcards are not permitted.

    EFI$CP supports binary files (generally fixed length 512-byte
    records) and stream files. It does block binary transfers for
    all file types and does not do record IO. It preserves the end-
    of-file markers when possible. In general, files types created
    by FTP from a UNIX or DOS/Windows system to VMS are the types
    suitable for EFI$CP. OpenVMS executables and binary firmware
    files work as expected.

    When transfering from FAT to RMS the default file format will
    be fixed length 512-byte records. Use the /ASCII command to
    set the attributes to STREAM_LF and the /TEXT command to set
    the attributes to STREAM. The switches are not useful when
    transfering from RMS to a FAT volume.

    There are basic checks for the the file organization made when
    copying files from OpenVMS onto the FAT volume, and files that
    are likely incompatible with typical FAT tools can trigger an
    INCOMPATFAT error such as the following:

 copy sys$login:login.com bar:\efi\
 %EFI-W-INCOMPATFAT, record organization or file structure not supported by FAT

    Incompatible files will still be copied, however applications
    reading the files will have no means of knowing how to treat the
    contents. When copied back out to an RMS file they will not have
    the correct file or record attributes and may also be unusable.

    The most frequent error of this type is copying an OpenVMS text
    file with the standard variable length records. Use the OpenVMS
    CONVERT command to convert the files before using EFI$CP.