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Date:	Wed, 18 May 2005 11:54:08 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Mv after tar in a shell script problems
Message-ID:	<20050518095408.GP18174@calimero.vinschen.de>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<428B0B51 DOT CB8FB8A AT dessent DOT net>
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In-Reply-To:	<428B0B51.CB8FB8A@dessent.net>
User-Agent:	Mutt/1.4.2i

On May 18 02:30, Brian Dessent wrote:
> "Gary R. Van Sickle" wrote:
> 
> > ...and, if I change the mv to a loop which keeps trying if there's a
> > failure:
> > 
> >   while ! mv dir_name_file.tar.bz2_untars_to new_dir_name; do echo "retrying
> > move..."; done
> > 
> > it will eventually work after a few iterations.
> > 
> > I... huh?
> > 
> > I'll brew up a test case, this is nutso.
> 
> The only thing I can think of is that tar exits immediately after
> issuing the final write() of the last file, and mv starts up before the
> file system has a chance to finish commiting that write to disk.

Sounds not convincing.  If the OS isn't able to deal with such a basic
situation, it's seriously unusable.  Windows might have some annoying
properties, but it's certainly usable.


I'm just running a script which desperatly tries to reproduce the above
problem, but it WJFFM:

  #!/bin/sh
  while true
  do
    tar xvjf foo.tar.bz2
    mv foo.dir bar.dir
    rm bar.dir
  done


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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