[dhosek]

I was kind of expecting this to be about the fact that beginning with the Apple ][ and running up to (and maybe even a little past) the introduction of OS X, text files on Apple computers used ^M as the line delimiter as opposed to ^J on Unixes and ^M^J on DOS.

[Sunspark]

^M = Carriage Return ^J = Line Feed

[cable2600]

https://www.computerhope.com/unix/dos2unix.htm