[ale] How to use xargs correctly to create thumbnails

[silberm at mindspring.com (m)]

I am trying the move through a directory structure and use ImageMagick's
convert to create thumbnails. Convert is easy enough to work it requires

#convert -geometry 25% product.jpg product-mini.jpg

However I am not sure how to trangress a direcory structure. I have
treid something like;

#find /tmp/test -name \product.jpg -print "%h/%f  %h/mini-%f\0" | xargs
-0 -l1 convert -geometry 25%

But can't get it to work. Any suggestions?

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