> oh no i reinstalled the os on my vps and now ssh has it on good authority (said authority is line 68) that someone is doing something nasty ssh-keygen -R $

> oh no i reinstalled the os on my vps and now ssh has it on good authority (said authority is line 68) that someone is doing something nasty ssh-keygen -R $HOST IIRC the security warning actually used to suggest this command, but then stopped in order to discourage people from thoughtlessly bypassing it. (I don’t like this pracrice of deliberate unhelpfulness—cf Chrome’s “thisisunsafe” HSTS override—but neither do I like the results of being helpful in such cases. Ugh.) > also it's a nicely "semantic"/compact/comprehensible way of expressing patches in things like portfiles or nix expressions As far as I can tell, your ed script sans the wq at the end is a valid sed(1) script, and that is what people usually use for casual patching in packaging situations (although Nix also has substituteInPlace et al).