move/copy file by extension preserving directories hierarchy.

[tizio incognito <jeeglio yahoo it>]

I don't know if it has benn already asked, but it could be a nice feature the possibility to move/copy files recursively by extension preserving the directory structure. I'll better explain by an example:

src dir

|

+- sub dir 1

|  +- file1.png

|  +- file1.jpeg

| 

+- sub dir 2

   +- file2.png

   +- file2.jpeg

command: move_by_ext *.png src_dir dest_dir

dest dir

|

+- sub dir 1

|  +- file1.png

| 

+- sub dir 2

   +- file2.png

Thanks in advance

Daniele Giglio