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Date: Sun, 26 Jun 2005 01:57:33 +0200 (CEST)
From: Svein Halvor Halvorsen <svein-freebsd-questions@theloosingend.net>
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Subject: Chop off end of file
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I have a ~70GB, of which the last ~50GB is garbage. I know exactly at what 
byte I want to cut the file, but I do not have enough free diskspace to do 
a 

   dd if=orig of=pre bs=... count=....


Is it possible to just chop off the end of a file, without making a copy 
of its beginning? It's a dv-file, resulting from "fwcontrol -R". I left my 
home and forgot about it. When I returned home, the disk was full, and now 
I need to delete the garbage. I know at exactly what byte to cut the 
stream.



Svein Halvor