[Info-vax] Stupid question of the day, re: OpenVMS process names

[Arne Vajhøj]

On 3/13/2020 10:10 AM, Tim Lovern wrote:
> On Friday, March 13, 2020 at 7:07:26 AM UTC-7, Arne Vajhøj wrote:
>> On 3/13/2020 9:55 AM, Tim Lovern wrote:
>>> Ok, I cannot have two processes with the same process name, but I can
>>> set my process name to be the same as that of a different user.
>>>
>>> I get that process names are not guaranteed to be unique. So what is
>>> actually happening behind the curtain? is the process name hashed
>>> with the UIC internally, and this is what prevents me from having two
>>> identically named processes but allows me to have the same name as
>>> somebody else's process?
>>>
>>> Or is it some other mechanism that I probably understood at one time
>>> but have long since managed to forget? (finite number of brain cells,
>>> infinite volumes of adult beverages, you do the math... :-) )
>>
>> Process names has to be unique within processes belonging
>> to users in same *group*.
> 
> So it is the UIC (group) driving it. I thought so, but couldn't remember.

If you only care about the visual in SH U/F, then note that it is a
pure string comparison meaning that adding a trailing space makes it
accepted.

Arne