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Re: Builtin 'read' data not saved
From: |
Chet Ramey |
Subject: |
Re: Builtin 'read' data not saved |
Date: |
Thu, 02 Jan 2014 20:51:28 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
On 1/2/14, 2:19 PM, P Fudd wrote:
> Hello all,
>
> I'm at my wit's end. This script is not working:
This comes up regularly. The last time was less than a month ago:
http://lists.gnu.org/archive/html/bug-bash/2013-12/msg00066.html
If you have the Bash FAQ, this is covered in question E4. Greg
Wooledge's FAQ also considers the topic:
http://mywiki.wooledge.org/BashFAQ/024
> I'm baffled; it's like the while loop is in a parallel universe.
That is, in effect, what a pipeline is: separate processes run in
parallel with chained input and output.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/