Xah Lee, , …,
Emacs has a file management mode called dired. (➲ dired tutorial) “Dired+” mode by Drew Adams, adds many more functionalities to dired.
Here's some of its features i found very useful.
\.html$. But now you can just type .html. (you still need to type the dot though.)These are in addition to extremely useful features in dired.
Get it here: www.emacswiki.org Dired+.
To install, just place the file at 〔~/.emacs.d/dired+.el〕, then put this code (require 'dired+) in your emacs init file. Optionally, call byte-compile-file to make it load and run faster.
I didn't like some of the default color. You can change it by calling customize-group then “Dired-Plus”. For the color values, you can enter it using this syntax #7b68ee. To see a list of colors and their hex values, call list-colors-display.
See also: Emacs Advanced dired Tips.
Thanks to Jon Snader for the tip on marking files by extension.