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- Backup data before reszie as it over write original
-To preserve aspect ratio remove !
You can also specify width and height of the resized image (in pixels), as an alternative to using a percentage.
Replace 70 with the desired height.
Replace 180 with the desired width.
I put it in my bashrc, because by default my terminal is too small.
This command requires the imagemagick libraries and will resize all files with the .jpg extension to a width of 1024 pixels and will keep the same proportions as the original image.