Robocopy - Copy directory into another directory

If you want to create an exact duplicate, use the following version (which is equivalent to adding /E and /PURGE:

robocopy c:\source d:\destination /MIR

If all you want to do is copy the directories and subdirectories including empty ones, use

robocopy c:\source d:\destination /E

It is the backslash on the E option that was getting you.

To learn more about Robocopy here is a handy search:

http://www.google.com?q=robocopy+syntax