"binary diff" utility

Devin Teske devin.teske at fisglobal.com
Fri Jun 29 16:21:38 UTC 2012

On Jun 29, 2012, at 8:53 AM, Wojciech Puchar wrote:

> i have many windows images running over virtualbox. each takes several gigabytes. i use flat image format.
> each differs by very little.
> Is there any program that can do "diff" and keep just a difference between each of them instead copy of whole VM disk??

Der, someone over my shoulder highlights the fact that there's "bsdiff" and "bspatch" in the base system for diffing/patching binary files.

But your mileage may vary with such large files. Something from ports that's already been recommended may work better.

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