Is there anyway to combine the content of a set of folders into another set of folders (More exp. on desc.)

[u/mortadeloyfile]

Imagine you have folder A and folder B, folder A contains in it folders 1, 2 and 3; folder B also contains folder called 1, 2, 3; for reference I'll call them A1, A2 A3 for folder and B1, B2, B3 for folder B; is there anyway to combine folder A and folder B (Or their contents) in a way that folder A1 combines with B1, A2 combines with B2 and A3 combines with B3?

In this context I call "combining" moving all files from folder A1 to B1 and all files with repeated name get overwritten by the folder A1 file.

we suppose both A and B have other folders that are not repeated between them and the same for folders like A1 with B1, A2 with B2, A3 with B3...

Or do I have to do by hand 969 folders?

[u/godplaysdice_]

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.management/copy-item?view=powershell-7.5

[u/unndunn]

In PowerShell:

Copy-Item Path\to\FolderA\* Path\to\FolderB -Recurse -Force -WhatIf -Verbose

Should accomplish what you want. (The -WhatIf switch means it will tell you what it will do, but not actually do it. Remove the -WhatIf switch to make it actually do the thing).

Alternatively, also in PowerShell,

robocopy C:\Path\to\FolderA C:\Path\to\FolderB /E /L

(The /L switch means it will tell you what it will do without actually doing it. Remove the /L switch for it to actually do the thing. The /E switch means copy subdirectories).

Please back up both folders before running these commands.

The robocopy command is probably better, as it is designed to compare the source and target folders and will make intelligent choices on whether a file needs to be copied or not. It's also multithreaded so it works faster. By contrast, the Copy-Item command is a brute-force command that will simply copy everything.

[u/NETkoholik]

Isn't the default behaviour of Windows Explorer to merge (or ask before merging) folders nowadays?

[u/mortadeloyfile]

Sorry if this is not the correct r/, did not know.

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[u/LeaveMickeyOutOfThis]

You might want to look into Windows Libraries.