My problem: I realized open3 returns the pid only at closure.

If you add an & to the end of your command, it will be run asynchronously and open3 will be able to return the pid to you immediately.

You would need to add a shell into the mix though.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re: How to catch that pid? by BrowserUk
in thread How to catch that pid? by mudMonk

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