How do I move files by looking at part of a file name

Question

My web application creates multiple image thumbnail files when users upload images.

I want to separate original images and thumbnail images. Thumbnail images contain 'crop-smart' in their file name.

For example, original image is watermelon.jpg, then thumbnail's name is watermelon_jpg_120x120_crop-smart.jpg.

How do I find by say 'crop-smart' and either move them to the different folder or delete them?

Answer 1

Standard file globbing will do this, the exact details may vary depending out which shell you are running but for your exact problem, it should be the same:

mv -- *_crop-smart.jpg /path/to/new/folder/

(This will also work if you have spaces in the filename)

Note the -- signals to mv that no more option switches will follow, so even if filenames look like options, mv won't get confused.