Thanks for asking Ori, I was just working up the courage to express my ignorance 

On July 1, 2022 6:05:30 AM PDT, Ori Idan <ori@heliconbooks.com> wrote:
>On Thu, Jun 30, 2022 at 7:38 PM Paul Winalski <paul.winalski@gmail.com>
>wrote:
>
>>
>> o why a memory access violation is reported as "segmentation fault" or
>> "bus error", and the difference between the two
>>
>> o why CTRL/D is used to end a shell command line session
>
>I am not sure I know that, I'd be happy to know.
>
>>
>
>
>> o why CTRL/S and CTRL/Q are used for flow control in a shell command
>> line session
>>
>Also would be happy to know.
>
>
>>
>> o why an application memory dump after an application crash is called
>> a core file
>>
>> -Paul W.
>>