Hi Karl,
What do i miss?
As I understand it, you missed telling Perl to encode your STDOUT output as UTF-8, after you read it in the second time (from the file). You don't need to (should not) do so when printing the output of cat, since your terminal already handles the encoding correctly.
use strict;
use warnings;
use feature qw(say);
use utf8; # <-- needed, since you have high characters in your source
my $file = q(weird.txt);
open( my $fh, '>', $file );
binmode $fh, ':encoding(UTF-8)';
say $fh qq(nase\ngöre);
close $fh;
say qx (file -I $file);
say qx(echo \$LANG);
say qx(cat $file);
open( $fh, '<', $file );
binmode $fh, ':encoding(UTF-8)';
binmode STDOUT, ':encoding(UTF-8)'; # <-- here
say <$fh>;
close $fh;
__END__
The way forward always starts with a minimal test.
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