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Re: [Help-bash] read -ep and ANSI colour sequences

From: Chet Ramey
Subject: Re: [Help-bash] read -ep and ANSI colour sequences
Date: Wed, 20 Feb 2013 10:23:00 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130107 Thunderbird/17.0.2

On 2/20/13 5:01 AM, muji wrote:
> Hi,
> I would like to use ANSI colour sequences when showing a prompt using
> read -ep but I can't figure out how to do this. Is this possible? Am I
> missing something? Using standard escape sequences does not appear to
> work, my current test code looks like:
> read -ep "\033[1mABC\033[0m" value;
> Using echo -e the output is bold as expected:
> echo -e "\033[1mABC\033[0m";

The basic problem is that read -p doesn't interpret octal sequences and
convert them to single characters, and echo -e does.

``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden

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