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Re: Background processes prevent terminal window from closing
- From: Andy Koppe <andy dot koppe at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Thu, 5 May 2011 05:42:58 +0100
- Subject: Re: Background processes prevent terminal window from closing
- References: <BANLkTin2LqmSCJ8CdjSCNLTiPO8_sOknpg@mail.gmail.com>
On 5 May 2011 05:30, Ryan Dortmans wrote:
> 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 &
>  10260
> $ exit
> 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.
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