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From: Pier Paolo Grassi <pierpaolog@gmail.com>
Date: Tue, 30 Jul 2019 14:28:32 +0200
Message-ID: <CAP+y1xAZiPn1B-GDPZw27fzBMdXSHbr+N3cgJBjOe_MeKG=0vw@mail.gmail.com>
Subject: variable expansion inside string
To: Zsh-Users List <zsh-users@zsh.org>
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Hello, is it possibile to do only variable expansion inside a string, eg:

file="filename.txt"
a="*$file*"

I would like to print $a as:

*filename.txt*

I have tried ${(P)a}
and
eval echo -n - $a

but neither do what I would like, because $a does not contains only a
variable name, and the * are expanded by glob subst in the eval case.

thanks in advance

Pier Paolo Grassi
linkedin: https://www.linkedin.com/in/pier-paolo-grassi-19300217
founder: https://www.meetup.com/it-IT/Machine-Learning-TO

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