On 10/28/20 5:36 AM, Damien Miller wrote: > 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. There might also be a 'ControlMaster' setting hidden in ssh_config(5) in that example. It seems to be needed to create the designated socket: $ ssh -S /tmp/sock -Nf server.example.com; ls -lh /tmp/sock ls: cannot access '/tmp/sock': No such file or directory $ ssh -S /tmp/sock -MNf server.example.com; ls -lh /tmp/sock srw------- 1 lars lars 0 Oct 28 07:29 /tmp/sock I notice that with -f the $! variable stays blank. /Lars _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
