Way back on this day in 1941, Conrad Zuse unveiled the Z3; it was the
first programmable automatic computer as we know it (Colossus 1 was not
general-purpose). The last news I heard about the Z3 was that she was
destroyed in an air-raid...
This pretty much started computing, as we know it.
-- Dave
All, in case you haven't seen it:
https://www.ioccc.org/2018/mills/
This is a PDP-7 emulator in C, enough to run PDP-7 Unix. But the author
has written a PDP-11 emulator in PDP-7 assembly, and uses this to run
2.9BSD on the emulated PDP-7 :-)
Cheers, Warren
>From: jnc(a)mercury.lcs.mit.edu (Noel Chiappa)
>To: tuhs(a)tuhs.org
>Cc: jnc(a)mercury.lcs.mit.edu
>Subject: Re: [TUHS] Who used *ROFF?
>Message-ID: <20180512110127.0B81418C08E(a)mercury.lcs.mit.edu>
>
<snip>
>Are you familiar with the description in Dennis M. Ritchie, "The Evolution of
>the Unix Time-sharing System":
>
> https://www.bell-labs.com/usr/dmr/www/hist.htm
>
<snip>
Please note the URL should end with ".html", not ".htm"
I wasted 5 minutes (insert big grin) wondering why I got an 404 like
404 Not Found
Code: NoSuchKey
Message: The specified key does not exist.
Key: hist.htm
RequestId: 454E36190753F99C
HostId: 6EJTsEdvnbnAr4VO7+mxSWH+dcX8X6AGRLZxwOLha/9q5G2CAxsVbEw6aMF+NHIPbhrAQ+/t/8o=
Hardly ever use notepad, hardly ever used notepad. Especially since I
discovered notepad++ many years ago ( https://notepad-plus-plus.org )
Of course, I use what is handy for what I'm doing. 'vim' I use when I
want to do some 'manipulation :-)
Does anyone know why UUCP "bag" files are called "bag"?
Seeing as this relates to unix-to-unix-copy, I figured that someone on
TUHS might have an idea.
Thanks in advance.
--
Grant. . . .
unix || die
Tomorrow, May 12, in 1941 the Z3 computer was presented by Konrad Zuse:
https://en.wikipedia.org/wiki/Z3_(computer)
I enjoyed reading the specs at the bottom of the Wikipedia page. I
never heard of this project until today, coming across it an article.
Mike Markowski
Born on this day in 1930, he gave us ALGOL, the basis of all decent
programming languages today, and the entire concept of structured
programming. Ah, well I remember the ALGOLW compiler on the 360...
There's a beaut article here:
https://www.cs.utexas.edu/users/EWD/ewd02xx/EWD215.PDF
And remember, testing can show the presence of errors, but not their
absence...
--
Dave Horsfall BSc DTM (VK2KFU) -- FuglySoft -- Gosford IT -- Unix/C/Perl (AbW)
People who fail to / understand security / surely will suffer. (tks: RichardM)
I'm curious as UNIX folks if somewhere can enlighten me. I sometimes
answer things on Quora and a few years ago the following question was
posted:
What does "Experience working in Unix/Linux environments" mean when given
as a required skill in company interviews? What do they want from us?
<https://www.quora.com/What-does-Experience-working-in-Unix-Linux-environmen…>
Why would this be considered a spam violation - which I was notified today
as being so.
It all depends the job for the specific experiences the hiring mangers want
to see. The #1 thing I believe they will looking for is something that does
not need to have a GUI to be useful. If you a simple user, it means you are
comfortable in a text based, shell environment and are at least familiar
with, if not proficient with the UNIX tools such as, ed, vi or emacs, grep,
tail, head, sed, awk, cut, join, tr, etc. You should be able to use one or
more of the Bourne Shell/Korn Shell/Bash family or CShell. You should be
familiar with the UNIX file tree and basic layout and its protection
scheme. It helps if you understand the differences between BSD, SysV, Mac
OSx, and Linux layout; but for many jobs in the UNIX community that may not
be required. You should also understand how to use the Unix man command to
get information on the tools you are using —* i.e.* you should have read,
if not own a copy of Kernighan and Pike The Unix Programming Environment
(Prentice-Hall Software Series): Brian W. Kernighan, Rob Pike:
9780139376818: Amazon.com: Books
<https://www.amazon.com/Unix-Programming-Environment-Prentice-Hall-Software/…>
and
be proficient in the first four chapters. If the job requires you writing
scripts to be able to write Shell script (*i.e.* program the shell) using
the Bourne Shell syntax *i.e.* Chapter 5 (Shell Programming).
If you are a programmer, then you need to be used to using the UNIX/Linux
toolchains and probably not require an IDE - again as a programmer
knowledge if not our proficiency of at least source code control system
from SCCS, RCS, CVS, SVN, Mercurial, git or the like needed. Kernighan and
Pike’s Chapter’s 6–8 should be common knowledge. But to be honest, you also
should be familiar with the contents contained within it, if not own and
keep a copy of the Rich Steven’s Advanced Programming in the UNIX
Environment, 3rd Edition: W. Richard Stevens, Stephen A. Rago:
9780321637734: Amazon.com: Books
<https://www.amazon.com/Advanced-Programming-UNIX-Environment-3rd/dp/0321637…>
(*aka* APUE) on your desk.
If you are system administrator, then the required set of tools get much
larger and besides the different way to “generate” (build) a system is a
good idea; but less tools for user maintenance. In this case you should be
familiar with, again if not own have a copy on your desk of Evi
Nemeth’s Amazon.com:
UNIX and Linux System Administration Handbook, 4th Edition (8580001058917):
Evi Nemeth, Garth Snyder, Trent R. Hein, Ben Whaley: Books
<https://www.amazon.com/UNIX-Linux-System-Administration-Handbook/dp/0131480…>
- which is and has been one of if not the best UNIX admin work for many,
many years.
Updated 05/07/18: to explain I am not shilling for anyone. I am trying to
honestly answer the question and make helpful recommendations of how to
learn what the person asked to help them be better equipped to be employed
in the Unix world. I used Amazon’s URL’s because they are global and easy
to use as a reference. But I am not suggesting you purchase from them. In
fact, if you can borrow a copy from you library to start, that might be a
good idea.
