in reply to
tied file handle, extra variable?
errata, perl-best-practices errata -> Perl Best Practices Unconfirmed Errata | O'Reilly Media, Perl Best Practices Confirmed Errata | O'Reilly Media
correct links are
but $handle wasn't mentioned.
EDIT: typo is still present in filtered.pl from "Source Code" download.
Postpone until later
Each and every
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