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To ignore aspect ratio, run:
for file in *; do convert $file -resize 800x600! resized-$file; done
and all images will be exactly 800x600.
Use your shell of choice.. This was done in BASH.
There are 9 alternatives - vote for the best!
Convert all jpegs in the current directory into ~1024*768 pixels and ~ 150 KBytes jpegs
If you can do better, submit your command here.
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