in reply to Re^2: Scoping question - will file handle be closed?
in thread Scoping question - will file handle be closed?

FH contains the reference in this case. That's why you should use
open my $FH, '-|', qw{ ls usr } or die $!;
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ