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<p>Learn's great and it's "easy" to get working in SimH. I included
it in my tutorial:</p>
<p><a class="moz-txt-link-freetext" href="https://decuser.github.io/unix/research-unix/v7/2024/05/23/research-unix-v7-3.2.html">https://decuser.github.io/unix/research-unix/v7/2024/05/23/research-unix-v7-3.2.html</a></p>
<p>Will<br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 7/16/25 16:59, Noel Hunt wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAGfO01z6YdJ44YSMWR57Ty59r2mHWnFOZYrHCO+Lrn74C-Obvg@mail.gmail.com">
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<div class="gmail_default"
style="font-family:monospace,monospace">Seventh Edition Unix
came with a program 'learn', written by</div>
<div class="gmail_default"
style="font-family:monospace,monospace">Brian Kernighan, which
was a front-end to a group of tutorials</div>
<div class="gmail_default"
style="font-family:monospace,monospace">on 'ed', 'tbl',
'troff' etc.</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">The 'ed' tutorial was
a wonderful introduction to the editor,</div>
<div class="gmail_default"
style="font-family:monospace,monospace">and a model of
clarity, as indeed they all were, but that was</div>
<div class="gmail_default"
style="font-family:monospace,monospace">typical of everything
written by researchers who were at 1127.</div>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Wed, 16 Jul 2025 at 22:53,
Brantley Coile <<a href="mailto:brantley@coraid.com"
moz-do-not-send="true" class="moz-txt-link-freetext">brantley@coraid.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Behind
the glass wall in the basement of the University of Georgia
graduate studies building, was the wide floor of the computer
center and behind that was the office of one of my mentors,
Bob Stearms. As he typed PL/1 into his 3278 terminal--channel
connected no less--I spied a plain white book sitting on a
shelf in his book case with an orange title "SOFTWARE TOOLS."
I picked it up and flipped through it. It was 1980, the first
year of my marriage. <br>
<br>
"What's this?", I asked as I pick up the volume and started
flipping through it. <br>
<br>
"It's from the Unix guys. They wrote a pre-processor for
FORTRAN and called it Ratfor. Then they wrote a bunch of the
Unix programs in it."<br>
<br>
"Can I borrow it?"<br>
<br>
"Sure."<br>
<br>
I changed my life. I still use what I learned from it
forty-five years later. And still very happily married to the
bride of my youth. <br>
<br>
After Bob passed away, Frieda gave me that volume. It's one of
my prized possessions.<br>
<br>
Forget Unix and C. The biggest research achievement to come
out of 1127 was a clear understanding of how to program.<br>
<br>
Brantley<br>
<br>
> On Jul 16, 2025, at 8:09 AM, <a
href="mailto:arnold@skeeve.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">arnold@skeeve.com</a>
wrote:<br>
> <br>
> IMHO, the best tutorials on ed are the chapters in
"Software Tools"<br>
> and "Software Tools in Pascal" where Kernighan and
Plauger write<br>
> a basic version of it. I recommend both books highly,
despite<br>
> their age.<br>
> <br>
> "Software Tools" literally changed my life. :-)<br>
> <br>
> Arnold<br>
> <br>
> Cameron Míċeál Tyre via TUHS <<a
href="mailto:tuhs@tuhs.org" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">tuhs@tuhs.org</a>>
wrote:<br>
> <br>
>> Ah, rabbit holes. Dangerous things. I went down the
ed rabbit hole around<br>
>> a month ago and no sign of me finding my way back out
any time soon.<br>
>> <br>
>> I got obsessed with getting ed running on every
device I have including my<br>
>> phones and then the big rabbit hole off that first
one was learning how to<br>
>> use it properly and to the fullest of its abilities.
That'll take a while.<br>
>> <br>
>> My library of ed related publications is getting so
big its likely<br>
>> what's blocking the exit to the rabbit hole. On the
plus side it has<br>
>> sharpened my typing skills, improved my patience and
I I've learned to<br>
>> work out for myself what I've done to cause ed to say
?, instead of just<br>
>> typing h+Enter.<br>
>> <br>
>> As rabbit holes go, it's been stimulating so far and
I could be stuck<br>
>> in worse places.<br>
>> <br>
>> Have a safe one!<br>
>> <br>
>> Cameron<br>
>> <br>
>> <br>
>> -------- Original Message --------<br>
>> On 16/07/2025 01:01, Luther Johnson <<a
href="mailto:luther.johnson@makerlisp.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">luther.johnson@makerlisp.com</a>>
wrote:<br>
>> <br>
>>> I just noticed that algorithm and logarithm just
have a couple of<br>
>>> letters transposed from each other. So that's the
kind of rabbit hole I<br>
>>> get lost in most days.<br>
>>> <br>
>> <br>
<br>
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