I managed to overwrite my /bin/sh so no shell!

been partying since we had this national twoday special holiday for partying called WAPPU..

And i was tired as hell and started making OC scripts for titans kernel i had installed on thurday and just somehow managed to overwrite my /bin/sh with a script!!!

HOW do i fix this?

install midnight commander or something to fix it? flash the whole thing? xterm is obviously busted now so how screwed am I?

still writing this from my n900 so maybe this is recoverable...

aaaaargh need to sleep but gootta fix this first.