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Re: $* in here-document


From: Chet Ramey
Subject: Re: $* in here-document
Date: Mon, 28 Apr 2025 14:42:23 -0400
User-agent: Mozilla Thunderbird

On 4/24/25 11:13 PM, Martijn Dekker wrote:
Reproducer:

IFS=/
set a b c
cat <<EOF
$*
EOF

Actual output: a b c
Expected output: a/b/c

In any context in which field splitting is not possible, POSIX specifies that $* uses the first character of $IFS as the output field separator. Here-documents are such a context.

Thanks for the report. I fixed this back in November, 2022, based on

https://lists.gnu.org/archive/html/bug-bash/2022-09/msg00002.html

It came in too late in the bash-5.2 release cycle to be included.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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