find . -type f -name "*.txt" -o -name "*.py" -o -name "*.yml" -o -name "*.yaml" -o -name "*.YAML" -o -name "*.ini" | while read file; do
    echo "=== $file ===" >> betelgeusebytes.txt
    cat "$file" >> betelgeusebytes.txt
    echo  "" >> betelgeusebytes.txt
done