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       preserve the file information (RECFM, LRECL, and BLKSIZE).  So
       when you unzip a file zipped with ZIP under CMS or MVS, UNZIP
       restores the file info.  The output will be fixed-length if the
       original was fixed and variable-length if the original was
       variable.

    If UNZIP gives a "write error (disk full?)"  message, you may be
    trying to unzip a binary file that was zipped as a text file
    (without using the -B option)


    Summary
    -------
    Here's how to ZIP the different types of files.

    RECFM F text
       Use the -a option with ZIP to convert to ASCII for use with other
       platforms or no options for use on EBCDIC systems only.

    RECFM V text
       Use the -a option with ZIP to convert to ASCII for use with other
       platforms or no options for use on EBCDIC systems only.


    RECFM F binary
       Use the -B option with ZIP (upper-case "B").

    RECFM V binary
       Use the -B option with ZIP.  Can be zipped OK but the record
       structure is destroyed when unzipped.  This is OK for data files
       read as binary streams but not OK for files such as CMS MODULEs.


 6. Character Sets

    If you are used to running UNZIP on systems like UNIX, DOS, OS/2 or
    Windows, you will may have some problems with differences in the
    character set.

    There are a number of different EBCDIC code pages, like there are a
    number of different ASCII code pages.  For example, there is a US
    EBCDIC, a German EBCDIC, and a Swedish EBCDIC.  As long as you are
    working with other people who use the same EBCDIC code page, you
    will have no trouble.  If you work with people who use ASCII, or who
    use a different EBCDIC code page, you may need to do some
    translation.

    UNZIP translates ASCII text files to and from Open Systems EBCDIC
    (IBM-1047), which may not be the EBCDIC that you are using.  For
    example, US EBCDIC (IBM-037) uses different character codes for
    square brackets.  In such cases, you can use the ICONV utility
    (supplied with IBM C) to translate between your EBCDIC character set
    and IBM-1047.

    If your installation does not use IBM-1047 EBCDIC, messages from
    UNZIP may look a little odd.  For example, in a US EBCDIC
    installation, an opening square bracket will become an i-acute and a
    closing square bracket will become a u-grave.

    The supplied ZIP and UNZIP EXECs attempt to correct this by setting
    CMS INPUT and OUTPUT translations to adjust the display of left and
    right brackets.  You may need to change this if brackets don't
    display correctly on your system.


 7. You can unzip using VM/CMS PIPELINES so unzip can be used as
    a pipeline filter.  Example:
       'PIPE COMMAND UNZIP -p test.zip george.test | Count Lines | Cons'




Please report all bugs and problems to:
   Zip-Bugs@lists.wku.edu


-----------------------------------------------------------------------
Original CMS/MVS port by George Petrov.
e-mail:  c888090@nlevdpsb.snads.philips.nl
tel:     +31-40-781155

Philips C&P
Eindhoven
The Netherlands

-----------------------------------------------------------------------
Additional fixes and README re-write (4/98) by Greg Hartwig.
e-mail:  ghartwig@ix.netcom.com
         ghartwig@vnet.ibm.com

-----------------------------------------------------------------------
Additional notes from Ian E. Gorman.
e-mail:  ian@iosphere.net