From: Jeff King <peff@peff.net>
Date: Mon, 20 Jun 2011 23:24:25 GMT
Subject: Re: POSIX woes in t7810.87: dash bash or bash dash?
Message-ID: <20110620232425.GA617@sigill.intra.peff.net>
In-Reply-To: <7voc1sb2hr.fsf@alter.siamese.dyndns.org>

On Mon, Jun 20, 2011 at 02:46:08PM -0700, Junio C Hamano wrote:

> diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
> index 69bd576..6379ad6 100755
> --- a/t/t7810-grep.sh
> +++ b/t/t7810-grep.sh
> @@ -658,9 +658,9 @@ test_expect_success LIBPCRE 'grep -P -v pattern' '
>  '
>  
>  test_expect_success LIBPCRE 'grep -P -i pattern' '
> -	{
> -		echo "hello.c:	printf(\"Hello world.\n\");"
> -	} >expected &&
> +	cat >expected <<-EOF &&
> +	hello.c:	printf("Hello world.\n");
> +	EOF

Do you need to quote EOF to suppress expansion in the here document?
Both bash and dash seem to pass unknown backslash-escapes like "\n"
through unharmed, but I don't know if that is portable (they do both
munge known escapes like "\\", of course).

-Peff