> ed is very similar, but it doesn't come with a nice manual In many case it indeed doesn't. Historically, that documentation void was meant to be filled by le

> ed is very similar, but it doesn't come with a nice manual In many case it indeed doesn't. Historically, that documentation void was meant to be filled by learn tutorials[1] and a written introduction in volume 2A of the manual[2,3]. Unfortunately, the learn tutorials can't really be made use of in a modern environment; you’d actually have to set up a PDP-11 emulator with V7 (though prebuilt images exist) and work with that, an environment where backspace doesn’t really work out of the box. OpenBSD ed(1)[4] tries, but it's just not quite there as an introduction. [1] http://a.papnet.eu/UNIX/v7/files/doc/07_learn.pdf http://a.papnet.eu/UNIX/v7/files/doc/07_learn.pdf [2] http://a.papnet.eu/UNIX/v7/files/doc/04_edtut.pdf http://a.papnet.eu/UNIX/v7/files/doc/04_edtut.pdf [3] http://a.papnet.eu/UNIX/v7/files/doc/05_adved.pdf http://a.papnet.eu/UNIX/v7/files/doc/05_adved.pdf [4] https://man.openbsd.org/ed.1 https://man.openbsd.org/ed.1