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Date: Mon, 28 Sep 2015 19:48:25 +0300
From: Mikhail Usenko <cygwin AT inbox DOT ru>
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] Updated: bash-4.3.39-2
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On Mon, 28 Sep 2015 08:56:14 -0600
Eric Blake <...> wrote:
> 
> 'echo -n' and 'echo -e' are non-portable (even in bash; because I can
> use 'shopt -s xpgecho' to get POSIX-mandated behavior).  Use 'printf'
> instead.
> 

xpg_echo doesn't change 'echo -ne' behavior
('echo -e' force backslash-escape sequences expansion independently)

$ shopt xpg_echo
xpg_echo        off
$ echo -e '\r\n' | od -tx1
0000000 0d 0a 0a
0000003
$ shopt -s xpg_echo
$ shopt xpg_echo
xpg_echo        on
$ echo -e '\r\n' | od -tx1
0000000 0d 0a 0a
0000003
$ echo '\r\n' | od -tx1
0000000 0d 0a 0a
0000003



-- 
Mike


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