The text $main in your eval is being taken as a variable of that name. Escape the $.

But you shouldn't need to use eval. This works for me:

my $var = 'fred';
${"main::$var"} = 12345; ## set main::fred = 12345

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In reply to Re: Setting package variables via eval by BrowserUk
in thread Setting package variables via eval by metaperl

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