concat.sh

#!/bin/bash

# Define the output file
output_file="combined.md"

# Remove the output file if it exists to avoid including it in the search
if [ -f "$output_file" ]; then
    rm "$output_file"
fi

# Find all Markdown files in subfolders, exclude the output file path, and concatenate them into one file
find . -type f -name '*.md' ! -path "./$output_file" -exec echo "Adding {} to $output_file" \; -exec cat {} + >> $output_file

echo "All Markdown files have been concatenated into $output_file"