-T
-B
Description:Message> -T and -B not implemented on filehandles
admin Perl
(F) Perl can’t peek at the stdio buffer of filehandles when it doesn’t know about your kind of stdio. You’ll have to use a filename instead.
(F) Perl can’t peek at the stdio buffer of filehandles when it
doesn’t know about your kind of stdio. You’ll have to use a filename
instead.