Recursively resize images in a directory tree with imagemagick / mogrify

resize.bash

 #1. find files matching a pattern
 #2. use mogrify to resize them. 
 # -quality 94 = jpeg quality.
 # -verbose so you can tell where it's at in the directory tree
 # -resize 2000x\> = resize to a maximum of 2000px wide, automatic height (2000x). Only resize larger images, no upscaling (>). Because > is a special character it is escaped with \
 # Aspect ratio is automatically maintained.
 #3. write new image in place
 
 #TEST THIS THOROUGHLY AND KEEP A BACKUP OF YOUR ORIGINAL DIRECTORY TREE
 
find . -name "*.jpg" -exec mogrify -quality 94 -verbose -resize 2000x\> {} \;