[TUHS] Control-T in UNIX

Paul Manno via TUHS tuhs at tuhs.org
Sat May 23 21:26:15 AEST 2026


Hello Reese,

I think you’ll find a large collection of UNIX experiences in Georgia
clustered around GT. I was one of those early users / admins who installed
v5 (not system 5) Bell Labs UNIX on PDP 11s receiving the tape directly
from Ken Thompson. I’m still good friends with Arnold and many others
living and those sadly gone but memories and stories still happily linger.

If you can find a copy, you might find it interesting reading Peter Salus’s
book
“A Quarter Century of Unix” still on Amazon. You may even find some other
interesting projects done at GT.  ;-)

Congrats on the ham radio license too!

Paul
KG4UVU


On Fri, May 22, 2026 at 23:06 Reese Johnson via TUHS <tuhs at tuhs.org> wrote:

> Wow! Thank you so much. I'm a bit younger but I really love Unix. I am
> located in Georgia too. I use ^T all the time still on FreeBSD. I had no
> idea GT had something to do with it. Nice to meet you all. This list is so
> amazing.
>
> Thanks
> Reese KN4NTU
> 73
>
> On Thu, May 21, 2026 at 01:23:02PM -0600, Arnold Robbins via TUHS wrote:
> > It was indeed posted to USENET, but didn't (IIRC) make it into the
> > official 4.3 BSD release.
> >
> > Scott Lee and I put it in to 4.2 BSD at Georgia Tech, and I think I
> > put it into 4.3BSD + Mt. Xinu at Emory.
> >
> > At GT, I remember a professor who came from MIT being pleasantly
> > surprised to learn that we had ^T on the vax. :-)
> >
> > Rich Salz via TUHS <tuhs at tuhs.org> wrote:
> >
> > > My recollection is that Chris Torek at University of Maryland added
> control
> > > t to the bsd tty driver and it was made available in 4.3 or so. It was
> > > posted to Usenet which is where I read about it
> > >
> > > On Thu, May 21, 2026, 7:02 AM Ron Natalie via TUHS <tuhs at tuhs.org>
> wrote:
> > >
> > > > When Mike Muuss was playing with enhancing the UNIX scheduler in our
> > > > (largely V6 based) kernels, we had access to some of the DEC-10 OS’s
> > > > that did have control-T.
> > > > Mike added that to our kernel (llisting all the processes running on
> the
> > > > terminal) so he could get some feedback on what his tweaks were
> doing.
> > > >
> > > > -Ron
> > > >
> > > >
>


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