Batch Resize Image Script

This simple script will go through all *.JPG files in the current directory and re-size them to 640x480.

#!/bin/sh
 
for file in *.JPG
do 
	echo "Resizing file $file ..."
	convert -resize 640x480 "$file" "$file"
done

If you don't have convert installed, install it with:

sudo apt-get install imagemagick