$ perl
use open ":encoding(utf8)";
Can't locate open.pm in @INC (you may need to install the open module)
(@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5
/usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl
/usr/lib64/perl5 /usr/share/perl5 .) at - line 1.
BEGIN failed--compilation aborted at - line 1.