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X-HELO:	calimero.vinschen.de
Date:	Wed, 4 Dec 2013 10:13:48 +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:	<20131204091348.GA29444@calimero.vinschen.de>
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References:	<397AD605DAD9254D9D2FFE207111E6442B05FF04 AT MOKSCY3MSGUSR9D DOT ITServices DOT sbc DOT com>
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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.

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.


Thanks,
Corinna

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

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