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imagemagick globbing multiple extensions

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linux-howto

http://unix.stackexchange.com – I have a folder containing photos coming from different cameras. I use Imagemagick to convert to resized and renamed photos in another folder. Something like this: convert "*.jpg" \ -resize 640 -scene 1 \ "${folder}/${prefix}_%02d.jpg" The problem is some cameras save photos with "JPG" extension, others with "jpg". To solve this I used to rename extensions with this: rename .JPG .jpg *.JPG 2> /dev/null This won't work on filesystems where I have only read access. How do I glob in IM both *.jpg and *.JPG files? Thanks for your help (HowTos)