How can I copy files from A to B, only including files that exist in B?

Question

Maybe could be hard to explain, but I'll! I'm on Windows 7 Professional, and this is my scenario :

Folder "Asd" (C:\)              Folder "Asd" (D:\)
File 1                          File 1 
File 2                          File 3 
File 3                          File 4
File 4
File 5

Well. I'd like to select the folder on C:\ (without selecting each single file, of course) and opy it over the same folder on D:. Usually, it will copy all files. BUt what I'm looking for is to copy only files (from C:) that are contained on folder d:.

So in my case I'd like to replace only File 1, File 3 and File 4. File 2 and File 5 must be ignored.

Is it possible?

Answer 1

When you want to copy, robocopy always has the right switch to do it.
Here you want the /XL switch to exclude “lonely” files:

robocopy C:\ D:\ /S /XL

This will work with files or folders.

Answer 2

Try using XCOPY command:-

Syntax:

xcopy sourceDirectory DestinationDirectory /U /Y

 /U           Copies only files that already exist in destination.
 /Y           Suppresses prompting to confirm you want to overwrite an
              existing destination file.

Example:

xcopy D:\Temp\test\*.* D:\Temp\test11 /U /Y

*.* - indicates all files in this directory

Here it overrides the files in destination folder "D:\Temp\test11" folder with the files from source

Answer 3

A simple for-loop combined with a dir /b should work. Something like this:

FOR /F %X IN ('dir /b D:\Asd') DO copy "C:\Asd\%X" "D:\Asd\%X"

If you're using a batch file, replace %X with %%X (something to do with they way how Windows processes variables, it's different from the command line).

Answer 4

To go alongside the robocopy and xcopy methods, here's the solution with JP Software's TCC/LE and copy:

copy /c c:\asd\ d:\asd\