: If you are using a terminal (Linux, macOS, or Windows CMD), typing cd .. will instantly move you into the parent directory.
Consider a basic web server structure:
When a web server (like Apache, Nginx, or IIS) does not find an index.html , index.php , or default.asp file in a folder, it may generate an automatic or "index of" page. This page lists all files and subfolders inside that directory. index of parent directory uploads top