On Sun, 11 Dec 2022, Michael Kjörling wrote:

> On 10 Dec 2022 19:22 -0500, from clemc@ccc.com (Clem Cole):
>> My memory is there were also a bunch of two
>> letter programs, rx/sx and rz/sz and the like.  Frankly its been so long
>> since I had any use for them, I've forgotten.
>
> I remember at least sz/rz from my early (for me) forays into UNIX,
> back when ZModem was pretty much state of the art at least on micros
> and I had files locally that I wanted remotely or vice versa. The
> mnenomic being s(end)/r(eceive) z(modem); "send" and "receive", of
> course, being local to the remote host, so the opposite sense of what
> one would do with the terminal emulator program that one interacted
> with locally. So "sz <some file>" at the prompt, then activate the
> "receive ZModem transfer" function locally; or "rz <some file>", then
> activate the "send using ZModem" function locally.
>
> I think the host I was on at the time (which appears to have been some
> Solaris) also offered XModem and YModem variants as [rs][xy], but I
> never used those because someone had at some point told me that ZModem
> was better. :-)

Kind-of a pain to type as I'm SSHing in from my phone, but they still 
exist and I have "lrzsz" installed on my Debian box.

-uso.