Possible Duplicate:
How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
In vim, J joins the next line to the current line. Is there a similar one-key (or relatively short) command to split a line at a given cursor position? I know it be done with a simple macro, but it seems like if the J-command exists there should be a similar function. I've tried searching for it, but can't seem to find an answer.
I don't think that there is a single key command for this. The best you can do with stock vim is probably i Enter Esc.