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What is the mean of the following syntax?

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From:
William Torrez Corea
Date:
August 3, 2022 06:41
Subject:
What is the mean of the following syntax?
Message ID:
CAGiORHdPRFLtNUmcz31WN1Dai1bP_0fJS48zsjNng1MBFcKmRw@mail.gmail.com
Mean: !~ /\*/

I have the following code:

if ($extension !~ /\*/) {
$backup = $ARGV . $extension;
}


-- 

With kindest regards, William.

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