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Number   :  67
Date     :  2001-05-17
Author   :  Joseph Maddison
Subject  :  Re: xxcopy switches, etc.
Size(KB) :  1


Okay, I'm not sure that my understanding here is complete, or maybe it's 
just completely wrong!

I'll back up to observable facts. I've used Explorer to move directory 
trees around. Occasionally,
when moving or copying a tree to an entirely new location, it says 
something along the lines of: File already exists, do you wish to 
overwrite? Say what? There was *nothing* where I was copying to (verified). 
It is somehow creating its own collision.

I've explored this situation and it seems to happen when files are copied 
in an order that is not alphabetical on LFN/SFN. What I think is happening 
is that Explorer moved/copied the TechSpec2 (TECHSP~2) to the new directory 
first and gave it the SFN (TECHSP~1), next, it tries to copy TECHSP~1 from 
the original dir and asks if it can overwrite. Is this right? Could you 
explain what is happening here and explain if I would get into a similar 
situation with /NX0?

>If you use XXCOPY more, you will realize how "allergic" XXCOPY
>is to any destructive (delete, and overwrite) operation. It
>gives you plenty (probably too many) confirmation prompts before
>a deletion.

I'm afraid that's why I'm using /yy. My copydir.bat consists of

XXCOPY.EXE /h/i/s/e/nx/yy %1 %2

Note: I make sure the target directory does not exist, since I know this 
could be hazardous if it exists and is readonly, especially if this were a 
MOVE operation.

I don't want to answer prompts for a zillion files, but I don't want to 
lose files copying from one place to another. My present solution is to 
perform a DIR /B/S/L/-P and find LFN's with ~ in them and make a batch file 
to rename those files to use "-", just in case, which is an extra step at 
best. I'd like to skip it, if I can do so safely.

Thanks for your patience,

Joseph Maddison
Minneapolis, MN



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