from "man perlvar" 
       All Perl variables that begin with digits, control
       characters, or punctuation characters are exempt from the
       effects of the package declaration and are always forced
       to be in package main.  A few other names are also exempt:

               ENV             STDIN
               INC             STDOUT
               ARGV            STDERR
               ARGVOUT
               SIG
so adding 
print "\$main::ENV = '$main::ENV'\n";

[download]
you get 
$main::ENV = '2'

[download]
as expected...

In reply to Re: Scalar $ENV in a package by cianoz
in thread Scalar $ENV in a package by knight

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