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  1. or download this
    open my $FH, '<:encoding(UTF-8)', 'filename.txt' or die $!;
#              ~~~~~~~~~~~~~~~~
  2. or download this
    #! /usr/bin/perl
use warnings;
...

my $s = encode('UTF-8', "\N{MIDDLE DOT}");
say join ' ', unpack "C*", $s;
  3. or download this
    ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,