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Re: have read command few first chars. fed by CL

From: Greg Wooledge
Subject: Re: have read command few first chars. fed by CL
Date: Thu, 3 Sep 2020 10:57:56 -0400
User-agent: Mutt/1.10.1 (2018-07-13)

On Thu, Sep 03, 2020 at 07:47:25AM -0700, almahdi wrote:
> is it possible to have the *read* command few first characters in buffer is
> fed by way of script code / CLI

It's a bit unclear what you're really trying to do here, but I'm guessing
you want to pre-populate the user's input for a read command, to provide
a "default" that can be edited.

If you use read with the -e option (to enable readline), you can also use
the -i option.

      -e        use Readline to obtain the line
      -i text   use TEXT as the initial text for Readline

unicorn:~$ read -p 'What is your name? ' -e -i "$LOGNAME" -r name
What is your name? greg_

Where _ represents the cursor.  The string "greg" is pre-populated
from the -i option, and can be backspaced or whatever.

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