Guillaume Cottenceau wrote:
> 
> exact filesize should be enough, no?

Not at all!  Imagine if just the value of some important constant had
been changed?  That will not change the size of the object, but will
change the timestamp.   

A watertight approach would also include an md5sum match.  rsync in
effect checks all three to detect differences, therefore so should
we.  

Military precision is the only safe approach.

-- 
Regards,

Ron. [AU]

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