[Info-vax] Creating an open source version of VMS, was: Re: OpenVMS Hobbyist Notification

[Simon Clubley]

On 2020-03-12, VAXman-  @SendSpamHere.ORG <VAXman- at SendSpamHere.ORG> wrote:
> In article <r4c3bd$8fa$1 at dont-email.me>, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> writes:
>>
>>Maybe, but I could see it being a problem to a few people.
>>
>>Two possible ways around this:
>>
>>1) The returned PID is actually that of the parent shell PID and you
>>use another value (such as REAL_PID or MY_PID) to get your own PID.
>>
>>2) You add another option, called SPID or similar, to get the parent
>>shell PID and change your command procedure to use that instead on
>>the rare occasion you need something like this.
>>
>>I do not like option 1 as it is a hack and option 2 feels way cleaner.
>>Option 2 is also the same as the $$ syntax in bash.
>
> I prefer the option of understand the OS and the APIs provided.  How the
> FiretrUCK would you do it on unix with everything being is own process?
>

You use the PID of the parent shell itself. That's what the $$ variable
in bash contains.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.