in reply to Re: How can i extract a number from an string
in thread How can i extract a number from an string
/^BS(\d)/ or warn("Invalid frobniz id ($_)\n"), next;
Or possibly die on bad input. Never ignore it.
(And, it's better to be explicit about the loop variable IMHO, $_ is a missed opportunity to write self documented code).
In Section Seekers of Perl Wisdom