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Subject: Re: Adding to a windows zip file without zip.exe
From: Reid Thompson <Reid DOT Thompson AT ateb DOT com>
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Date: Wed, 16 May 2007 16:28:55 -0400
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On Wed, 2007-05-16 at 15:29 -0500, René Berber wrote:
> Chadwick wrote:
> 
> > Cygwin is currently installed on over a hundred windows 2003 servers, and is
> > used to do some admin tasks as well as to pull files from the servers on a
> > daily basis via ssh.  One of the files pulled from each server is a windows
> > ZIP file.
> > 
> > I want to add an extra file to this ZIP file using a script.  I looked at
> > both DOS batch scripts and cygwin shell scripts but have run into problems
> > because the cygwin installed on these boxes doesnt contain ZIP.exe, and the
> > PKZIP.exe I would used with a batch script is so old it only accepts 8.3
> > filenames.
> > 
> > Updating the servers with new cygwin or command line packages is not an
> > option at this point.
> [snip]
> > Any suggestions?
> 
> Use java, specifically `jar` which is just a fancy unzip-then-call-java thingy, 
> and it also does just work as zip (with tar like use).
> 
> Just do:
> 
> jar -h
> jar -tvf your.zip
> jar -cvf another.zip files...
> 
> Remember to use only DOS/Windows paths.

jar -uvf your.zip  the_new_file

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