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From: Raffaele Ricciardi <rfflrccrd@gmail.com>
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Subject: Re: Examining the output of a shell command?
Date: Sun, 28 Jun 2015 17:03:52 +0200
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On 28/06/15 16:55, Eli Zaretskii wrote:
>> (shell-command-to-string "echo $RED hello $NORMAL")
>> --> "hello
>> "
>
> Check your shell init files.

I did that already:

    $ echo $RED
    \[\e[1;31m

Another puzzling behaviour:

    $ echo $RED
    \[\e[1;31m
    $ emacs -nw -Q
    M-: (getenv "RED") RET
    --> nil

What's up?  I am using Bash 4.3.30.