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in grub.cfg: how to initialze a variable from the contents of a file

From: Dr. Zimmermann
Subject: in grub.cfg: how to initialze a variable from the contents of a file
Date: Thu, 29 Sep 2011 12:44:35 +0200
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a general question concerning variable initialization in grub.cfg:

As the subject says I'd like to initialize a variable in grub.cfg (dynamically during runtime) from the contents of a file.

In a shell, I'd simply do something like:

        myvar=`cat myfile`;

As far as I'm aware there aren't any exec quotes `` in the grub shell. Instead, at least the search command has a '--set' option to pass the return-string to a variable.

I haven't found such a mechanism for the 'cat' command. Also, setting the variable via redirection and file inclusion seems not possible.

Are there any way to solve the problem?

Pflichtangaben gemäß Gesetz über elektronische Handelsregister und 
Genossenschaftsregister sowie das Unternehmensregister (EHUG):

Universitätsklinikum Hamburg-Eppendorf; Körperschaft des öffentlichen Rechts; 
Gerichtsstand: Hamburg

Vorstandsmitglieder: Prof. Dr. Jörg F. Debatin (Vorsitzender), Dr. Alexander Kirstein, Joachim Prölß, Prof. Dr. Dr. Uwe Koch-Gromus

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