I have a top folder with many sub-folders. It's named "a". There are many .png and .jpg files in there. I'd like to recursively copy "a" into a new folder "b", but only copy the .png and .jpg files. How do I achieve that?

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    rsync -a --include='*.png' --include='*.jpg' --include='*/' --exclude='*' a/ b/ If you want to prune empty dirs add the -m switch : rsync -am .... – don_crissti Feb 21 '16 at 20:18
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    Please specify whether you want to recreate the directory structure (including only the jpg/png files) under b or you just want to recursively search for jpg/png under a and copy them to b ? – don_crissti Feb 21 '16 at 21:02
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    If you want to copy the directory tree recursively, this is a duplicate of unix.stackexchange.com/questions/2161/… . If you want to put all the files directly under b, I can't find a duplicate. Which is it? – Gilles 'SO- stop being evil' Feb 21 '16 at 21:50
find a \( -name "*.png" -or -name "*.jpg" \) -exec cp {} b \;
  • Whoops, I accidentally used *.png twice and forgot .jpg. This is what happens when I try to answer questions while listening to music. Thanks for catching my mistake. – gardenhead Feb 21 '16 at 20:56
  • OK, I think I got it this time. I learned something new about find today. Thanks. – gardenhead Feb 21 '16 at 21:06
  • One more thing: stick with -o instead of -or, it's more portable. – don_crissti Feb 21 '16 at 21:13
  • This is an excellent answer! – Jinhua Wang Oct 3 '19 at 13:47
for file in $(find a -name "*.jpg" -o -name "*.png")
  cp ${file} b/${file}


cp $(find a -name "*.jpg" -o -name "*.png") b

A bit shorter if there are more file types, using brace expansion

cp -r source_directory/*.{png,jpg,jpeg} target_directory

This gives an error whenever a file of a type does not exist. see https://serverfault.com/a/153893
Add 2>/dev/null to hide these errors
Add || : to not cause an exit code

cp -r source_directory/*.{png,jpg,jpeg} target_directory 2>/dev/null || :

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