[Info-vax] CTRL/D Versus CTRL/Z
Johnny Billquist
bqt at softjar.se
Thu Jun 30 15:05:24 EDT 2016
On 2016-06-30 20:03, John Reagan wrote:
> On Thursday, June 30, 2016 at 10:16:42 AM UTC-4, Johnny Billquist wrote:
>> On 2016-06-30 15:36, John E. Malmberg wrote:
>>> On 6/30/2016 7:19 AM, John Reagan wrote:
>>>> On Thursday, June 30, 2016 at 3:38:17 AM UTC-4, lawren... at gmail.com
>>>> wrote:
>>>>> Did VMS ever pick up the idea of foreground/background process
>>>>> groups?
>>>>
>>>> There is the ATTACH command that might solve some similar problems
>>>> but isn't quite the same since it is a DCL command.
>>
>> I seem to remember some some select other programs also have an
>> ATTACH/DETACH command?
>>
>
> I found it in the debugger and DTM. For the debugger, that is for debugging multi-process applications. DTM? Not sure why.
>
> The problem that ATTACH seemed to solve was trying to manage multiple processes from a VT100 (without using something like TOPS-10 OPSER or TOPS-20 PTYCON). Now a days, you have a larger screen where you can have multiple terminal emulators so ATTACH has less value (they do share the JOB table so that is a benefit over separate terminal screens).
>
> [One of my former coworkers actually wrote a PTYCON-32 for VAX/VMS. It might be on some older Freeware CDs but I'm not sure.]
Maybe we are talking about different ATTACH? There is definitely ATTACH
in MAIL, for example, to move between processes.
Johnny
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