In message , Big Al
writes:
On 12/10/18 11:35 AM, Ken Blake wrote:
On Mon, 10 Dec 2018 16:09:08 +0000, "J. P. Gilliver (John)"
wrote:
[]
For binary duplicates, _if_ you know one filename, using the
"Everything" search utility, with no name specified, highlighting the
file, then sorting the result by the size column, will list files of
identical size adjacent to the highlighted one, so that their names and
locations can be seen, and then compared (if only with "fc /b").
A very good suggestion. That has to be *much* faster than
comparing a
file with every other file on the drive, bit by bit.

Well, it's worth remembering that identical files tend to have identical
sizes (-:! [Though it's possible for _image_ files to have identical
_image_ data and _not_ be of identical size - different comment data,
for example. Though the size would usually be _similar_ enough that the
above "Everything" search might still have them _nearby_.]

On the other hand, perhaps a good duplicate finding program would
begin by doing the same kind of thing. I hadn't thought of that when I
posted my earlier message in this thread.

Specifically on images, Runningman's duplicate image finder did also
allow you to compare images of different sizes (number of pixels) and
formats (e. g. GIF/JPEG), and I think even 90 degree rotations.

And now that you say this, I do remember a 'find dupes' type of program
that had adjustments you could set as to how it find dupes. I think
size was one, and turn off name was another. That might have worked
if I remembered the program grin.

David Taylor's FindDup http://www.satsignal.eu/software/disk.html? That
certainly had the option to turn off name, and also ignore 0 size files.
(It isn't an image one, though.)

Al
John


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--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

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