8 replies to this topic

[Holmes.Sherlock]

I have two folders, viz, A & B, with the same sub-folder structure. My aim is to synchronize/mirror those two folders with a third folder C. It means that a file will exist in folder C if it exists either in A or in B. Again, if a file is deleted from either A or B, corresponding file will get deleted from folder C also. Does anyone know if there is any software to satisfy my need?

[RoyM]

Is it possible to just mirror all three folders A=B=C

Then that could be easily done with RoboCopy /MIR

[Holmes.Sherlock]

Then that could be easily done with RoboCopy /MIR

Does robocopy accept multiple sources?

[RoyM]

I was thinkin' more like a batch
RoboCopy A -> C
RoboCopyB -> C

Or any combination thereof.
Put RoboCopy.CMDs on each drive and then you could CALL each .CMD in any way you wanted.

[Holmes.Sherlock]

I was thinkin' more like a batch
RoboCopy A -> C
RoboCopyB -> C

While syncing A with C, robocopy will delete those which are not in A but in C.
While syncing B with C, robocopy will delete those which are not in B but in C.

The end result will vary. Think a bit.

[RoyM]

Don't use /MIR use /CopyAll

[Holmes.Sherlock]

Don't use /MIR use /CopyAll

No, I just tested /CopyAll switch.
As I expected that once copied, if any file is deleted at the source, does not get deleted at the destination thereafter.

[pscEx]

Should be easy to write a small app for that in one (Latin) hour.

Only issue: A and B both have a file with the same name, but the files contents are different.

How to decide: Create date, change date, length, ...?

Suggestion: The app does not really perform the copy for these problematic files. It creates a batch which can be edited by the user before executing.
The unproblematic files are copied directly.

Syntax: SyncEx <source directory1>,<source directory2>,<source directory3>,... <pattern> <target directory> [/R] [/E]

Peter

[Holmes.Sherlock]

Should be easy to write a small app for that in one (Latin) hour.

Only issue: A and B both have a file with the same name, but the files contents are different.

How to decide: Create date, change date, length, ...?

Conflict resolution can be done in various ways, e.g. user's decision, Overwrite older, Overwrite smaller etc.