how to get total file size of all images that fullfill exiftool critera

[timitalia]

I'd like to retrieve the total file size of all images that fullfill a certain critera (recursively whithin a directory)

For example if  I execute the following bash command

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find ~/SomeDirectory -type f -name '*.JPG' -exec du -ch {} + | grep total$

I get the total file size of all files with the extension JPG (nicely human readable like e.g. "50.2G   total")

Now I would like to get the same result but using exiftool "if expressions" like

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exiftool -r -T -if '$FileType eq "JPEG" ~/SomeDirectory -FilePath

Of course, this only lists me all the FilePaths. So how would I get the total file size for all these files, like above?

Working solutions are appreciated, thank you in advance!

[Phil Harvey]

This should do it:

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exiftool -r -if '$FileType eq "JPEG"' ~/SomeDirectory -filesize# -s3 -q | awk '{ total+=$1 }; END { printf "%.0f\n", total }'

- Phil

[timitalia]

What an awsome response time, thank you very much, thats exactly it! Love your tool. Cheers!