[Info-vax] Local Versus Global Command Options

[Arne Vajhøj]

On 2/22/2025 11:40 AM, Dave Froble wrote:
> On 2/22/2025 9:29 AM, Arne Vajhøj wrote:
>> On 2/22/2025 8:53 AM, Arne Vajhøj wrote:
>>> On 2/22/2025 12:53 AM, Dave Froble wrote:
>>>> On 2/21/2025 11:15 PM, Arne Vajhøj wrote:
>>>>> There are some ways to start a process with a DCL command
>>>>> (and therefore DCL mapped).
>>>>>
>>>>> There are some ways to start a process without specifying a DCL
>>>>> command and still getting a process with DCL mapped.
>>>>>
>>>>> There are some ways to start a process without DCL mapped.
>>>>
>>>> Now I'm confused.  Were we discussing starting an image in an existing
>>>> process, or starting a new process?
>>>
>>> Starting a new process.
>>>
>>> Because it is about a program running another program. And that
>>> indicate starting a new process.
>>
>> Unless LIB$DO_COMMAND which is special.
> 
> I recall that that starts a subprocess.  If I remember correctly.  Which 
> would be a new process.

LIB$SPAWN starts a new subprocess.

LIB$DO_COMMAND exits current image and execute the command
within the same process.

Arne