Dired is indeed a neat example. As per the linked post, one fancy thing one can do is make the buffer view of the directory editable, rewrite names for the fil

Dired is indeed a neat example. As per the linked post, one fancy thing one can do is make the buffer view of the directory editable, rewrite names for the files using the full power of Emacs editing and then dump the modified file names to disk. It is also cool that a new shell in a dired buffer starts in that directory. If the dired buffer was displaying a directory in a remote machine, then the shell starts in that directory on that machine. Just like things should be.