[Info-vax] Search for folders

bill bill.gunshannon at gmail.com
Sat Jan 27 20:30:48 EST 2024


On 1/27/2024 3:05 PM, Fred. Zwarts wrote:
> Op 27.jan.2024 om 20:55 schreef Arne Vajhøj:
>> On 1/27/2024 1:48 PM, Single Stage to Orbit wrote:
>>> On Sat, 2024-01-27 at 00:32 -0500, Dave Froble wrote:
>>>> Each disk has what you are calling a root directory.  Within it are
>>>> top level  directorys.  The "ROOT" can be addressed as [0,0],
>>>> [000000], or [000,000].  Don't ask me why more than one method.  I
>>>> don't know.
>>>
>>> Looks like some form of octal?
>>
>> [0,0] is a synonym for [000000].
>>
>> I believe it is for backwards compatibility with some PDP-11 OS,
>> but that is before my time - maybe some of the PDP-11 knowledgable
>> can either confirm and explain or discard the hypothesis.
> 
> Yes, PDP-11 running RSX. Each user had a user id and group id and one 
> (non-hierarchical) directory of the form [GID, UID].
> VMS version 1 was still using a lot of RSX programs, so it used this 
> form for compatibility.
> 

RSTS had  the same thing.

bill




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