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Quasi-duplicate files being created

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Using the Echo option from one drive's folder to another, I sometimes notice "shadow" files on the destination.
For example, if the source file is say myname.txt, the destination folder will contain at the end of the run these 2 files:
myname.txt
myname.1.txt
Sometimes the latter file is newer, sometimes older. What is causing this, and how can I prevent it?
Question
Answers
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I found out, in some older posts.
that if there is a collision between left and right versions of the files. (Left renamed, right created the same file, different sizes and timestamps) SyncToy has a "safety feature" that keeps the files by adding a decimal just before the extention.
Only fact i cannot figure out is why the difference between ages. My guess Synctoy would say keep the joungest file, but that is not the fact.
I did not test by deleting the .dat file, i only tried to reproduce the issues we had between a NTFS drive and an ext4 drive.
- Marked as answer by ronks Thursday, February 15, 2018 1:01 AM
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All replies
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I found out, in some older posts.
that if there is a collision between left and right versions of the files. (Left renamed, right created the same file, different sizes and timestamps) SyncToy has a "safety feature" that keeps the files by adding a decimal just before the extention.
Only fact i cannot figure out is why the difference between ages. My guess Synctoy would say keep the joungest file, but that is not the fact.
I did not test by deleting the .dat file, i only tried to reproduce the issues we had between a NTFS drive and an ext4 drive.
- Marked as answer by ronks Thursday, February 15, 2018 1:01 AM
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