MV option question

Hi, I have a question about mv --backup=numbered.
This option add a numbre plus ~ at the end if the filee allready exist.

I want to know if I can use this on :

somthing.1.gz

If the MV can do this thing with the 1 on the name. Like if there is one he will make a backup as somthing.2.gz

Thanks !

Why don't you just try it?

Actualy, I tryed it but I don't know the syntax. I did:

mv --backup=numbered -Ssomthing.*.gz

But here I block, he do : something.2.gz.something.*.gz.1
-S change the end, but I don't know if there is a way to teak it. I Googled it but din't find anything