The second fork lets you have two processes: one to run ssh, and the other to catch a HUP signal and do whatever it likes to the ssh server. The problem with your existing code is that when you run exec, the signal handler is cleared; using fork too lets you have one process with a signal handler of your choice, and a second process running ssh.

I'm not sure that this has an advantage over not doing the second fork and just keeping the PID's that ran exec in %PIDPOOL.

In reply to Re: Re: Re: Re: Re: Signals and subprocesses using fork, and system or exec. by sgifford
in thread Signals and subprocesses using fork, and system or exec. by exussum0

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