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       advzip ‐ AdvanceCOMP ZIP Compression Utility


       advzip [‐a, ‐‐add] [‐x, ‐‐extract] [‐l, ‐‐list]
            [‐z, ‐‐recompress] [‐t, ‐‐test] [‐0, ‐‐shrink‐store]
            [‐1, ‐‐shrink‐fast] [‐2, ‐‐shrink‐normal] [‐3, ‐‐shrink‐extra]
            [‐4,   ‐‐shrink‐insane]  [‐N,  ‐‐not‐zip]  [‐p,  ‐‐pedantic]  [‐q,
            [‐h, ‐‐help] [‐V, ‐‐version] ARCHIVES... [FILES...]


       The main purpose of this utility is to  recompress  and  test  the  zip
       archives to get the smallest possible size.

       For  recompression  the 7‐Zip (www.7‐ Deflate implementation is
       used. This implementation generally gives 5‐10% more  compression  than
       the zLib Deflate implementation.

       For  experimental  purpose  also  the 7‐Zip LZMA algorithm is available
       with the ‐N option. In this case, the generated zips WILL NOT BE USABLE
       by  any  other program. To make them usable you need to recompress them
       without the ‐N option.  Generally  this  algorithm  gives  10‐20%  more
       compression than the 7‐Zip Deflate implementation.


a, ‐‐add ARCHIVE FILES...
              Create  the specified archive with the specified files. You must
              specify only one archive.

       ‐x, ‐‐extract ARCHIVE
              Extract all the files on the specified archive. You must specify
              only one archive.

       ‐l, ‐‐list ARCHIVES...
              List the content of the specified archives.

       ‐z, ‐‐recompress ARCHIVES...
              Recompress the specified archives. If the ‐1, ‐2, ‐3 options are
              specified, it’s used the smallest file choice from: the previous
              compressed  data,  the  new  compression  and  the  uncompressed
              format. If the ‐0 option is  specified  the  archive  is  always
              rewritten without any compression.

       ‐t, ‐‐test ARCHIVES...
              Test  the specified archives. The tests may be extended with the
              ‐p option.

       ‐N, ‐‐notzip
              Use the LZMA algorithm when compressing. The generated zips will
              not be readable by any other application!

       ‐p, ‐‐pedantic
              Be  pedantic on the zip tests. If this flag is enabled some more
              extensive tests on the zip integrity are done. These  tests  are
              generally not done by other zip utilities.

       ‐0, ‐‐shrinkstore
              Disable  the  compression.  The  file  is  only  stored  and not
              compressed. This option is very useful to expand the archives of
              .png  and .mp3 files. These files are already compressed, trying
              to compress them another time is really  a  waste  of  time  and

       ‐1, ‐‐shrinkfast
              Set the compression level to ˝fast˝.

       ‐2, ‐‐shrinknormal
              Set the compression level to ˝normal˝. This is the default level
              of compression.

       ‐3, ‐‐shrinkextra
              Set the compression level to ˝extra˝.

       ‐4, ‐‐shrinkinsane
              Set the compression level to ˝insane˝.


       This file is Copyright (C) 2002 Andrea Mazzoleni, Filipe Estima


       advpng(1), advmng(1), advdef(1)

                                        AdvanceCOMP ZIP Compression Utility(1)