A bash script to move files from a nested folder structure like `posts/2023/02/25/passing-sveltekit-page-server-js-data-to-page-js/index.md` and rename the `.md` file with the name of the parent folder and move it to a new folder.

move-files.sh

#!/bin/bash

# create new folder called new
mkdir new

# find all index.md files in the folder structure
# and loop through them
find . -name 'index.md' | while read file; do
    # get the parent folder of the index.md file
    parent=$(dirname "$file")
    # get the name of the parent folder
    name=$(basename "$parent")
    # move the index.md file to the new folder with the new name
    mv "$file" "new/$name.md"
done