How to write a config dump to a local share

Hi

I am wanting to move the configuration dump to a local share, which I will then replicate to another appliance. I am wanting to do this using the CLI so that eventually I can do this automatically using ssh from an external scheduler etc. The problem I have is getting the syntax correct for the command. Firstly I cannot find the document that describes the command syntax (it's not in the online doc), or a CLI manual, and secondly would just appreciate someone tellin me what I am doing wrong. I am guessing that everyone else already does something similar