an emacs command to open a new instance of emacs

Question

How can I make a cross-platform emacs command that opens another instance of emacs with -q option?

The reason why I need such a command is that it would be easy to modify the command to make it open another instance of emacs with -q and -l option so that the new instance loads an el file that I am editing with the old instance.

Answer 1

If emacs is in your path, you could do that with meta-x shell and then emacs -d