[Info-vax] CTRL/D Versus CTRL/Z

[John Reagan]

On Thursday, June 30, 2016 at 3:38:17 AM UTC-4, lawren... at gmail.com wrote:
> Even though they started out very different, somehow along the way, *nix systems managed to pick up most of the DEC conventions for control characters (CTRL/C to interrupt a process, CTRL/Q and CTRL/S for flow control, CTRL/U to discard the input line), except one: the end-of-file indicator is CTRL/D, not CTRL/Z as it is on DEC systems.
> 
> Instead, CTRL/Z means “suspend the foreground process group”. This is part of the job-control facility for managing multiple concurrent processes. I also see a mention in the bash docs of a “delayed-suspend” character, which defaults to (wait for it) CTRL/Y. However, this might be a Hurd or BSD feature; it doesn’t seem to be available on Linux.
> 
> 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.