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Re: Possible bug when combining Bash's process substitution with HERE-do


From: Chet Ramey
Subject: Re: Possible bug when combining Bash's process substitution with HERE-document?
Date: Fri, 20 Jun 2014 10:31:40 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

On 6/19/14, 6:00 PM, Tim Friske wrote:

> When I try to explicitly return success in case read fails because of
> EOF the script indefinitely waits:
> 
> read -d '' -r foobar || true <<BARFOO
> bla bla
> BARFOO

You have constructed a command where `read' will wait forever for terminal
input and `true' will run with a here-document as its input.  Change the
first line to

read -d '' -r foobar <<BARFOO || true

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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