Finding and copying unique files in a directory.

I have a directory which contains photographs as jpgs. They are a bit mixed up - some sub-directories may contain files also in other sub-directories.

I want to create an archive of these pictures, and, rather than just copy the lot, including duplicates, I'd like to copy only one instance of each.

What is the best way to do this? I've started to think along the lines of:

# find . -print | xargs cksum | sort -u +0 -1

to get a list of filenames - but is there a better way?


Regards,


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Re: Finding and copying unique files in a directory.

George Orwell writes:

> I want to create an archive of these pictures, and, rather than just copy the lot, including duplicates, I'd like to copy only one instance of each.
>
> What is the best way to do this? I've started to think along the lines of:
>
> # find . -print | xargs cksum | sort -u +0 -1
>
> to get a list of filenames - but is there a better way?

you can pipe it into awk, and only print files with a unique value.
Md5sum (or sha1sum) is better than cksum