Tells Perl to match the pattern on th right against the string on the left, instead of matching against $_.
\!h # Simple example using the binding operator which helps find the word "success".
my $word = "success";
# Here =~ is the binding operator
if($word =~ m/success/) { # 'm/success/' is the matching operator, 'm' stands for matching
print "Found success!\n";
} else {
print "Did not find success\n";
}