[TUHS] Bell COSMOS UNIX Commands

[segaloco via TUHS]

As discussed in a previous thread, Bell Laboratories' COSMOS system was
an early AT&T application of UNIX outside of research, software
development, and typesetting, starting a trend of using UNIX as the
underlying system for telephone switching hardware.

Well I happened to be reading up on some various switching hardware
when I came across this AT&T spec for the "Frame Transaction Codes"
used in the COSMOS system:

https://telecomarchive.s3.us-east-2.amazonaws.com/docs/bsp-archive/SPCS/PA-6P014_I3.pdf

The first issue of this manual is from 1979.  I don't know for certain
if this manual is describing UNIX commands, but they are all prefixed
with a "%" alluding to a mid-70s shell.  There may be more nuggets
hiding in COSMOS-adjacent literature out there.

- Matt G.