> Do you remember if ed was missing in those machines I had to laugh out loud. I couldn't imagine such a system, that wouldn't be POSIX compliant. So I looked

> Do you remember if ed was missing in those machines I had to laugh out loud. I couldn't imagine such a system, that wouldn't be POSIX compliant. So I looked it up, and indeed, it's entirely possible. Debian doesn't necessarily include it. https://unix.stackexchange.com/a/609067 https://unix.stackexchange.com/a/609067