Feature Request: PID writeout on background

[Damien Miller]

On Tue, 27 Oct 2020, chris wrote:

> Hi all.
> 
> I have a simple feature request for the devs and maintainers; when
> forking into the background using the -f optarg one would normally have
> to consult the process table of whatever OS they're running to find the
> process. Would you consider adding another optarg to write the PID out
> to stdout or a pidfile? This would be rather helpful in several
> usecases.

You can retrieve this if you configure a control socket:

$ ssh -S /tmp/sock -nNf host
$ ssh -S /tmp/sock -O check host
Master running (pid=3509649)
$ ssh -S /tmp/sock -O exit host
Exit request sent.

-d