June 2002
Beginner
759 pages
80h 42m
English
Binary =~ binds a
scalar expression to a pattern match, substitution, or translation.
These operations search or modify the string $_ by default.
Binary !~ is just
like =~ except the return value
is negated in the logical sense. The following expressions are
functionally equivalent:
$string !~ /pattern/ not $string =~ /pattern/
see Section 4.6 later in this chapter.