How to create a single player world through command line?

[music7box]

I need to launch the game without showing main menu for simplicity.

 

Now I know how to connect to a (remote) server and join its running world directly (without showing main menu) by passing --server and --port command args to launch the game. It works pretty well.

 

But I have no idea on how to create a single player world or reenter the single player world created before directly.

 

I really need this functionality. Please help me. Many thanks in advance.

[lukas2005]

can you post the command b cause i has been searching how to run minecraft from command line for YEARS