MhKBgrgL

I've kept my daily notes organized by creating notebooks for each week, and stacks for each year. I'm consolidating older notes into a single folder, and it's leaving me hundreds of empty folders that I need to delete. However I can't find any way to delete folders other than one-by-one. Is there any way to delete multiple notebooks at once? Or is the only way to do this to sit here for an hour doing a repetitive task hundreds of time in a row? Thanks for any help.