X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=DsV06OWaqenPitVI
	zZ4aejXXuFmqFlpRgpqIc/BQ4fS7iPYiYkSaRn0O0dpE8IuwkYK9E5eICn3WkK5a
	wAjoIqT+nGcjnk9v9qgIwTiXTG2Vheu45XW9fJgr8wEU1LRL0ekQ3/FAL9Viq1tF
	jawO3Au3hJUOn+rVtQ8UqrS/riY=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=R0mg6W/9QTvMBkgfDEz5B/
	RDvjc=; b=HhMbmUwC7CSszuk4MiwXMsS6go2/VjeC+jgnSda++GpW/s31OlHY1Y
	tSwmxXpgILP4Af9V07QQAcdSUl4aYEUQfgFJTgzOSOs/r45X4+eHtqrX29IrfCz5
	gajmdIadLMFFh2enCXsySZ6Scq5O8CU2ffsOjDnC91Slq+S5EHdL8=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=-1.5 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_LOW autolearn=no version=3.3.2 spammy=inglis, Inglis, Alberta, alberta
X-HELO:	smtp-out-no.shaw.ca
X-Authority-Analysis:	v=2.2 cv=a+JAzQaF c=1 sm=1 tr=0 a=MVEHjbUiAHxQW0jfcDq5EA==:117 a=MVEHjbUiAHxQW0jfcDq5EA==:17 a=IkcTkHD0fZMA:10 a=mDV3o1hIAAAA:8 a=w_pzkKWiAAAA:8 a=wn2tWnfOKRrLvmu7J_sA:9 a=QEXdDO2ut3YA:10 a=dI9p-avQWAUA:10 a=9c8rtzwoRDUA:10 a=_FVE-zBwftR9WsbkzFJk:22 a=sRI3_1zDfAgwuvI8zelB:22
Reply-To:	Brian DOT Inglis AT SystematicSw DOT ab DOT ca
Subject:	Re: Pipe after Command Substitution does not resolve the substitution:
To:	cygwin AT cygwin DOT com
References:	<CAMwBcu5zQkiSRJQp9sPM5_n=emNzskk9Nk4dfQfGGe7fgOFEQQ AT mail DOT gmail DOT com>
From:	Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Message-ID:	<5cb58749-2ed2-e163-4b72-73948a48c66d@SystematicSw.ab.ca>
Date:	Wed, 14 Jun 2017 08:14:52 -0600
User-Agent:	Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1
MIME-Version:	1.0
In-Reply-To:	<CAMwBcu5zQkiSRJQp9sPM5_n=emNzskk9Nk4dfQfGGe7fgOFEQQ@mail.gmail.com>
X-CMAE-Envelope:	MS4wfMSu4zNUY6MF5VIV1hid9TqEVqaUl3lb3qu+P7ZmWnse0zjjXgHJ0IYPHXdSh/c2Oghp6mUdadgR1uTYCrckwghLakdiC5evVRIAVqtPhczb2AklMM7E rYSOdpWNhOxcr3fKss/b31CmS2LKhPc6VGuo1R+kHreIuBN5RsHGa1qsHM1XjIa1yfxsTIfngVAE6Q==
X-IsSubscribed:	yes

On 2017-06-14 01:41, Jon Bord wrote:
> Windows 10
> bash 4.4.11(2) and 4.4.12(3)

Better to just run the commands and post the output e.g.:

$ cmd /c ver

Microsoft Windows [Version 10.0.14393]
$ uname -svrmo
CYGWIN_NT-10.0 2.8.0(0.309/5/3) 2017-04-01 20:47 x86_64 Cygwin
$ bash --version
GNU bash, version 4.4.12(3)-release (x86_64-unknown-cygwin)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

and run and attach output as text:
$ cygcheck -svr > cygcheck.out

> $ set -xv
> (EXAMPLE 1: COMMAND SUBSTITUTION WORKS AS EXPECTED)
> $ grep 2 $(ls | tail -1)
> grep 2 $(ls | tail -1)
> ++ ls
> ++ tail -1
> + grep 2 test.txt
> 2
> 23
> (EXAMPLE 2: HANGS)
> $ grep 2 $(ls | tail -1)  | grep 3
> grep 2 $(ls | tail -1)  | grep 3
> + grep 3
> + grep 2
> (EXAMPLE 3: HANGS)
> $ grep 2 `ls | tail -1` | grep 3
> grep 2 `ls | tail -1` | grep 3
> + grep 3
> + grep 2

$ cat z
1
2
3
12
23
13
$ grep 2 `ls | tail -1` | grep 3
23

WFM!
Command substitution adds arguments to the command line and does not
interfere with pipes.

> SPECULATION: i had wondered if the cause was a change in version of
> bash but i cannot be sure what the version was that i was using on
> Windows 7. I wish i had a record. I've tried this on both 4.4.11(2)
> and 4.4.12(3). My instincts are that it is not, that it is Cygwin (or
> more precisely bash.exe?) on Windows 10 instead. I have noticed other
> differences / problems, eg arrow keys behaving oddly in vi, and
> general sluggishness (but not tested yet).

Cygwin 32?
Run "rebase-trigger full", shut down all Cygwin processes, download and
run setup to do a full rebase, and retry.

AV?
BLODA?
https://cygwin.com/faq/faq.html#faq.using.bloda
Fork problems are often a symptom of poorly written software like those
listed.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -