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Re: [Condor-users] Inconsistent Disappearing Backslashes in Windows UNC Paths for Output and Error Lines

It never fails, as soon as I email the condor-users mailing list, I
fix my problem.  For those of you having similar problems, here's the

We had a double backslash somewhere in the path, e.g. our submit file
had a line that looked something like this:

"Output = \\10.75.x.x\abcd\SomeFolder\\AnotherFolder\output.out"

>From trial and error, I found out the double backslash in the middle
of the path (between "SomeFolder" and "AnotherFolder") was somehow
causing Condor to decide to turn "\\" into "\" and "\" into "".  It
would interpret the above as:

"Output = \10.75.x.xabcdSomeFolder\AnotherFolderoutput.out"

So the moral of the story is, make sure you don't have doubled
backslashes, UNLESS it is the first part of a UNC path.  The following
obviously works fine:

"Output = \\10.75.x.x\abcd\SomeFolder\AnotherFolder\output.out"

I do think this should be labeled as a bug in Condor, or at least
checked when the submitter does error checking...

On Wed, Oct 17, 2012 at 11:29 AM, Michael Aschenbeck
<m.g.aschenbeck@xxxxxxxxx> wrote:
> Hello,
> I am experiencing some very frustrating problems with how Condor is
> interpreting my output and error lines.
> I believe it first happened after upgrading to Condor version 7.8.0.
> I found my shadow log was turning double backslashes ("\\") into
> single backslashes, and single backslashes were just removed.  (These
> paths are UNC path's, e.g. \\10.75.x.x\somedir\.)  Accordingly, I
> doubled every backslash in the output and error lines of my submit
> file, and everything worked as expected (e.g. output =
> \\\\10.75.x.x\\somedir\\test\\test.out)
> Later, we sent our program out the door to someone who was running
> 7.8.3, and their system had trouble with the double backslashes..
> They switched these to single backslashes and it worked as expected.
> 2 months later, on the same exact system but a new program, they are
> now having the original problem I had and double backslashes are the
> only things that make it work!
> I have looked high and low for the reason why this is happening but I
> can't find anything.  It is extremely frustrating, since it seems to
> be somewhat random (they are two different submit files, but they seem
> to have the same exact format).
> Any help/clues would be greatly appreciated!
> Thanks!
> Mike