Unmatched ) in regex; marked by <— Error in Perl

Question

if ($_ =~ "buff\)" ) { print $_ ; }

While executing the above line, Perl is throwing following error:

Unmatched ) in regex; marked by <-- HERE in m/buff)

Can any one explain why this ) close parenthesis is not working as normal string even if I am escaping it with a backslash?

Answer 1

Escape the backslash:

=~ "buff\\)"

Or don't use the quotation marks at all, but regex notation:

=~ /buff\)/