note
haj
<p>The error message appears if you neither provide an argument nor a value for the environment variable <code>LOGS_EV</code>. Which value would you like to store to <code>$destdir</code> in that case? Do you have a default value hidden somewhere? If so, consider:</p>
<code>
$destdir = $ARGV[0] // $ENV{'LOGS_EV'} // $some_value;
</code>
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