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From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <130118073522.ZM24670@torch.brasslantern.com>
Date: Fri, 18 Jan 2013 07:35:22 -0800
In-reply-to: <20130118141322.GE4666@lp-shahaf.local>
Comments: In reply to Daniel Shahaf <d.s@daniel.shahaf.name>
 "Re: Backgrounding part of 'ssh-agent $cmd'" (Jan 18,  4:13pm)
References: <20130116065951.GA2992@lp-shahaf.local>
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	<20130118061845.GC3024@lp-shahaf.local>
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	<20130118141322.GE4666@lp-shahaf.local>
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To: zsh-users@zsh.org
Subject: Re: Backgrounding part of 'ssh-agent $cmd'
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On Jan 18,  4:13pm, Daniel Shahaf wrote:
>
> The part that I find less than ideal so far is that, under load, the GUI
> ssh-askpass dialog appears after foo_main has started.

You could do it like this:

  ( # Subshell so caller's environment won't be changed; could instead
    # declare locals, but this is immune to changes in ssh-agent
    eval `ssh-agent`
    ssh-add ~/.ssh/foo.id_rsa
    {
      for h in host1 host2 host3; do 
        ssh -MNf $h &
      done
      wait
    } always {
      ssh-agent -k
    } &
  )

Then you don't have to background foo_ssh_preseed, and your preferred
order of events is retained.

> > Am I missing something?
> 
> 'ssh -MNf' daemonizes itself

Ah, of course.