a big file taking all space not trace-able and visible. how to delete?

[Rajeev Prasad]

on my ubuntu 10.10
 
an ssh  process put a very large file which filled the FS to 100%
 
I tried to gip:  it failed.
I tried to move to my windows PC.... using winscp
while it was 'moving' i tried to rm the file.
 
now i do not see the file anymore but disk usage is still showing 100%
 
how to find and delete this file now?
 
pl advice.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20130124/56351636/attachment.html>