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Date:	Thu, 5 May 2011 05:42:58 +0100
Message-ID:	<BANLkTinhUwnY31oeQipoVaS8nRtC6=Hikw@mail.gmail.com>
Subject:	Re: Background processes prevent terminal window from closing
From:	Andy Koppe <andy DOT koppe AT gmail DOT com>
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On 5 May 2011 05:30, Ryan Dortmans wrote:
> Hi,
>
> I have found that background processes prevent the terminal window
> from closing. I have tried with the cmd terminal as well as mintty.
> Here is a simple example:
>
> $ notepad .profile &
> [1] 10260
> $ exit
> logout
>
> The window remains until I close the notepad window. I have also
> reproduced the issue using a simple looping shell script instead of a
> windows program.
>
> I thought that running disown would detach the process to turn it into
> a daemon, but this has no effect.

No, this just removes it from the shell's job control, but it still
remains connected to the terminal session.

> Is there any way to detach running background processes such that the
> terminal can be closed?

You can start a program in a separate session using the 'setsid'
utility from the util-linux package. I don't know whether it's
possible to detach a running process.

You can close the terminal anyway though using the Close button (or
Alt+F4 in the case of mintty), except of course that the background
process might also be closed, depending on its SIGHUP handling.

Andy

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