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X-HELO: calimero.vinschen.de
Date: Wed, 4 Dec 2013 13:17:05 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Problem with command substitution in mksh shell after upgrading to Cygwin 1.7.26
Message-ID: <20131204121705.GC8139@calimero.vinschen.de>
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References: <397AD605DAD9254D9D2FFE207111E6442B05FF04 AT MOKSCY3MSGUSR9D DOT ITServices DOT sbc DOT com> <20131204091348 DOT GA29444 AT calimero DOT vinschen DOT de>
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On Dec  4 10:13, Corinna Vinschen wrote:
> On Dec  4 03:22, PRIKHODKO, GEORGE wrote:
> > Hi,
> >=20
> > After upgrading to Cygwin to 1.7.26 the commands:
> >=20
> > print $(getIP)
> > print $(ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f=
 2 \
> >     | sed -e "s/ *\\([0-9.]*\\).*/\\1/")
> >=20
> > in the following script
> >=20
> > #!/usr/bin/ksh
> >=20
> > cv=3D$(uname -r)
> > cv=3D${cv%\(*}
> > cygcheck -s -v -r > cygcheck_$cv.out
> >=20
> > exec > test_$cv.log 2>&1
> > set -xv
> >=20
> > getIP() {
> >     ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f 2 \
> >         | sed -e "s/ *\\([0-9.]*\\).*/\\1/"=20
> > }
> > #
> > # the following four commands should print IP address 4 times
> > #
> > getIP
> >=20
> > print $(getIP)
> >=20
> > ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f 2 \
> >     | sed -e "s/ *\\([0-9.]*\\).*/\\1/"
> >=20
> > print $(ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f=
 2 \
> >     | sed -e "s/ *\\([0-9.]*\\).*/\\1/")
> >=20
> > exit
> >=20
> > started to produce incorrect results.
> > test_1.7.26.log shows instead of IP address a whole output of ipconfig =
is printed for these lines.
> >=20
> > /usr/bin/ksh, used in the script, is a symbolic link to /usr/bin/mksh
> >=20
> > Please, let me know if you need more info to research the problem.
>=20
> No, thank you.  I could track down the culprit of the problem.
> I don't have a fix yet, but it will be fixed in 1.7.27, which
> will be due really soon.

The fix was already in CVS.  Please try the latest snapshot from
http://cygwin.com/snapshots/, it should already contain the patch.


Thanks,
Corinna

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

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