[ANNOUNCEMENT] New package: setsid-0.0-3

Gregory Borota cygwin@sbcglobal.net
Wed Mar 3 23:31:00 GMT 2004

Under my 'CYGWIN_NT-5.1 1.5.7(0.109/3/2) i686' doing for example:

setsid ls -R /

would still block the console window (mostly for as long as ls runs).

IMO by redirecting only stdin to /dev/null one gets a setsid functionality
closer to
how setsid works under Linux and there is no difference concerning the
to close the console window. (It's true that by not redirecting stdin,
console window
can only be killed)

Wouldn't then be better to redirect only stdin? Are things different under

(I don't see the point for having stderr and stdout redirected also. (for
symmetry maybe))

Apologies if what I am suggesting is stupid.


----- Original Message ----- 
From: "Corinna Vinschen"

> This new package contains a tiny but handy tool called `setsid'.
> It's the command line version of the system call setsid(2) and
> is also available on a bunch of Linux distros.
> Basically it allows to call an application, say `sleep', like this:
>   setsid sleep 10
> `setsid' forks and detaches from the controlling terminal and so
> the inferior application will not be attached to the terminal as
> well.  Or, to make it short, you can start an application as above
> and immediately close the Windows console window while that application
> keeps running.
> On Cygwin, stdin, stdout and stderr are automatically redirected to
> /dev/null if they are connected to the tty (Otherwise closing the
> Windows console window wouldn't succeed).  If you want to keep the
> output, redirect on the command line, e.g.
>   setsid ls -l > ls.out
> To update your installation, click on the "Install Cygwin now" link on
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> system.  Once you've downloaded setup.exe, run it and select "Utils"
> and then click on the appropriate field until the announced version
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> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Developer                                mailto:cygwin@cygwin.com
> Red Hat, Inc.

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