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X-HELO:	calimero.vinschen.de
Date:	Tue, 27 Oct 2015 16:17:56 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Command line length in Ash or Dash Shells
Message-ID:	<20151027151756.GV5319@calimero.vinschen.de>
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References:	<22062 DOT 2952 DOT 946000 DOT 358554 AT woitok DOT gmail DOT com> <562E514E DOT 4000801 AT redhat DOT com> <22063 DOT 37889 DOT 345000 DOT 595112 AT woitok DOT gmail DOT com>
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On Oct 27 16:10, Dr Rainer Woitok wrote:
> Eric,
>=20
> On Monday, 2015-10-26 10:14:06 -0600, you wrote:
>=20
> > ...
> >                                                                  So once
> > you start a dash shell, that dash shell can start any number of other
> > dash shells with no command line length limit other than the memory
> > available to your machine.
>=20
> Assume I terminate  Cygserver and any  other Cygwin  services running, I
> then start "ash.exe" by double clicking it in a Windows Explorer window,
> from the  command line  in the  "ash.exe"  window  I start my  Ash Shell
> script which in turn starts  "setup-x86*.exe"  with a  very long command
> line.
>=20
> Am I interpreting you correctly in assuming that under these circumstan-
> ces the maximum length of this command line  is 2 * 10**9 ASCII charact-
> ers on my box?

That won't work.  setup.exe is a non-Cygwin application so it's restricted
to the maximum line length of the CreateProcess call, which, per
https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425%28v=3Dvs.=
85%29.aspx
is 32768 characters.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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