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From: cross@spitfire.i.gajendra.net (Dan Cross)
Newsgroups: comp.unix.bsd.misc,comp.misc,comp.unix.programmer
Subject: Re: Looking for historical source of the ex/vi editor
Date: Sun, 8 Dec 2024 21:15:18 -0000 (UTC)
Organization: PANIX Public Access Internet and UNIX, NYC
Message-ID: <vj5296$4ns$1@reader2.panix.com>
References: <20241123014205.0f18ecb030d7ed12ae7d60b9@gmail.moc> <vivt2n$2jidr$1@dont-email.me> <vj4po7$fvi$1@panix2.panix.com>
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Originator: cross@spitfire.i.gajendra.net (Dan Cross)
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In article <vj4po7$fvi$1@panix2.panix.com>,
Scott Dorsey <kludge@panix.com> wrote:
>Sebastian  <sebastian@here.com.invalid> wrote:
>>If you SSH to 3b2@sdf.org, you can find your way into an emulated
>>PDP-11 running System V. It has some version of vi installed,
>>with source code. It's possible to extract this code from the
>>system by first porting uuencode to it, and then porting a
>>version of tar that you can also run someplace else. The tar
>>that's installed on the system is not compatible with modern tars,
>>nor is it compatible with V7 tar.
>
>Something is wrong here.  A PDP-11 running SysV?  And with the uid "3b2"
>also?  And this isn't an AT&T 3B2 running SysV?

The earliest versions of System V (e.g., Unix 4 and SVR1) ran on
the PDP-11.

The above is correct; logging into `3b2@sdf.org` puts one into a
captive menu environment, and one of the options there is to
connect to an emulated PDP-11 running SysV; a new instance will
start if you select that menu option.  Then you can, `boot rp0`
and `0unix` (this will display as `0=unix`).

	- Dan C.