The nice thing about Emacs is that every time I go looking I find some more built-in functionality that saves even more time…..
In my experience, dired is one of the most underused modes of Emacs. Just C-xC-f to any directory in your hard disk and you’ll be presented with a list of its files and directories. One can browse this list, and execute all kinds of commands and transformations on them. If you’ve never done that before, just give it a try, and look at the menubar for a list of nifty things you can do inside dired. There’re several ways to mark files and operate on them afterwards: for instance, just type A to find inside the selected files any regexp, or Q to search and substitute.
One of my favorites dired functionalities is wdired-change-to-wdired-mode. When you invoke this interactive function (using M-x wdired-change-to-wdired-mode), the dired buffer becomes editable. That is, you can go around and edit directly the filenames as you would edit any other emacs text buffer…
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