Help with networking

Hello i need help with my fps game, i know how to do rpc and all that, but i dont know how to send player positions and receive them through a client that connected to the server

you need to look into networkviews.

i have i no beginner im saying how do i send a position to someone without having to set a varible like this.varible = there.varible

Since your not a beginner, you have read this page right ?
http://docs.unity3d.com/Documentation/Components/net-StateSynchronization.html

Yes, but it doesent fill my needs

Lol i have

Since your not a beginner surely you could find this:
http://docs.unity3d.com/Documentation/ScriptReference/Network.OnSerializeNetworkView.html

and that should show you as simple as it gets how to sync data. If you want a video just google it, there are hundreds, come on now.