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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
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Subject: RE: question with xargs and jar- seems to drop files.
Date: Wed, 5 Dec 2007 18:17:15 -0000
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On 05 December 2007 18:04, Mike Marchywka wrote:

> This seems to work suggesting the file list is acceptable to jar:
> 
> $ more latest65day | jar -@cvf wtf2.zip>jarlog2.txt
> 
> this, however, only includes a some files, apparently lopping off certain
> directories: 
> 
> $ more latest65day | xargs jar -cvf wtf2.zip>jarlog.txt

> Thoughts on diagnostic process of known problems? At first, I thought it
> had to do with errors encountered during the jarring but I think I've
> eliminated all of those ( missing files mostly). Also, as I indicated
> before, my configuration is suspect but I wouldn't expect it 
> to cause problems like this.

  I've had problems before with xargs, where it ends up generating a
command-line that is too long to spawn!

  There must be some weakness in the way xargs calculates the amount of space
available for a commandline under cygwin; I found that an effective workaround
was to give xargs the --max-chars flag with a size of around 16000 to 18000,
but depending on the size of your environment variables.

  Your mileage *will* vary, so you might need to experiment a bit.

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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