Updated: zip-3.0-2

Charles Wilson cygwin@cwilson.fastmail.fm
Sat Mar 7 10:01:00 GMT 2009

Zip is an open-source, command-line alternative to other zip-format
archives such as WinZip, etc.  zip-3.0 is the latest release from
Info-Zip, http://www.info-zip.org/pub/infozip/Zip.html.

[[ compiled using gcc-3.4.4-999 ]]

This will most likely be the final zip update for the cygwin-1.5
distribution; future development will continue with zip-3.0-10 
for cygwin-1.7.

CHANGES (since 2.32-2)
o Updated to latest upstream version
o Adds better large file support, including ZIP64 format.
o Unicode file names are NOT supported in this release, 
  and probably will not be supported by any zip package for
o Adds bzip2 compression format. However, the current version
  of unzip is unable to extract these archives; unzip-bzip2 support
  is in the forthcoming unzip-6.0 release, currently in beta.

Upstream changes:
o Large files. Greater than 2GB total; individual files > 2GB, 
  and more than 64k files in a single archive.
o Multi-volume. Supported via "split" archives, but not "spanned"
  archives. See /usr/share/doc/zip-3.0/README.
o Unicode. @@@ NOT SUPPORTED ON CYGWIN-1.5 @@@
o Better command line options. Long option names, and option
  permuting (allows -x exclude and -i include options to appear
  other than always last, as was the case in 2.32).
o Supports 32bit UIDs/GIDs. However, this requires unzip-6.0
  (currently in beta) to restore.
o New modes. Difference mode supports incremental backups. File
  sync mode supports synchonizing between an archive and on-disk
  files. Copy mode allows copying individual contents between
  different archives.
o Compression using bzip2. Slower, but often better than deflate.
  Requires unzip-6.0 (currently in beta) to unpack.
o Better streaming and piping. Zip operates in command pipelines
  using stdin/stdout, as well as FIFOs, better than before.
o Gobs of new progress information. Also log files.
o Updated archive fixing. Can also now fix split archives.
o Windows Archive bit support.
  (Use difference mode instead; it's better).
o File lists. Think 'make -n'
o Extended help. 'zip -h2' == practically a man page.
o Many bug fixes.

Charles Wilson
volunteer zip maintainer for cygwin


To update your installation, click on the "Install Cygwin now" link
on the http://cygwin.com/ web page.  This downloads setup.exe to
your system.  Then, run setup and answer all of the questions.


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