[TUHS] UNIX v4 Source Code Commentary - complete book now available

[Briam Rodriguez via TUHS]

Thank you for your kind words, Cameron.

I want you and all the lovely folks here to know how glad I am to be 
here, and that I take all feedback to heart.

It's no mystery that the happenings of UNIX history were before my time, 
so I ask your patience with any errors or omissions; I'm approaching 
this as much as a historian as a programmer. But more than anything, 
this book is a mark of gratitude to K&R for making my livelihood 
possible. This is my way of attemping to contribute back to a community 
that has given me so much.

-- Briam R.

On 1/12/26 7:51 PM, Cameron Míċeál Tyre wrote:
> Hello Briam,
>
> Thank you. This is like a Christmas present, even though it is now mid-January. As an amateur, I can only read the content and absorb. I know for sure, having already skimmed through a few pages, that I will enjoy reading it and learn much.
>
> Best regards,
>
> Cameron
>
>
>
> -------- Original Message --------
> On Monday, 01/12/26 at 21:38 Briam Rodriguez via TUHS <tuhs at tuhs.org> wrote:
> Hello,
>
> Following the incredible recovery of the UNIX v4 tape from the University
> of Utah last month, I've written a comprehensive line-by-line commentary
> on the entire UNIX Fourth Edition source code.
>
> The book covers:
> - The kernel (boot, processes, memory management, scheduling)
> - The file system (inodes, buffer cache, namei)
> - Device drivers (TTY, RK05 disk, character devices)
> - User space (shell, utilities, C compiler, assembler)
> - Plus appendices with system call reference, file formats, and PDP-11 guide
>
> It's open source (CC BY-NC-SA 4.0) and available on GitHub:
>
> https://github.com/unix-v4-commentary/unix-v4-source-commentary
>
> The PDF is included in the repo for those who just want to read.
>
> It is my sincerest hope that this book can help someone, and I'd
> appreciate any feedback (and changes!).
>
> Many thanks to Robert Ricci, and Al Kossow, and everyone involved in
> recovering this historic code.
>
> Without that work, this book wouldn't have been possible. Also thanks to
> Mr. Warren for letting me in to the mailing list!
>
> Please don't beat me up too bad!
>
> Humbly yours,
>
> Briam Rodriguez
>
>