duplicate files/dirs if copied to the same location

[habamax]

Something similar to what Windows explorer does.

If you copy to the same directory, ask to create a copy, generate a new name, e.g.

hello world.txt -> hello world - copy.txt

if hello world - copy.txt exists use hello world.txt - copy (1).txt

if hello world - copy (1).txt exists, increment counter and try again.