Edlin is a classic editor from the early DOS days, but it’s still a fun and useful editor. Here's a hands-on intro to editing with Edlin:
I use Edlin when I want to write something quickly, like a test program or a brief note.
Edlin is also very useful if you want to capture some commands into a FreeDOS batch file— you can write the new batch file while any commands you ran are still visible on the screen.