$n or $n() | New line. Use $n() if followed by alphanumeric character, e.g. write Foo$n()Bar instead of Foo$nBar |
$nop or $nop() | Is a "no operation". This variable gets removed; useful for nested search |
$quot | Double quote (") (\" also works) |
$percnt | Percent sign (%) |
$dollar | Dollar sign ($) |
$dollar to escape the leading dollar, thus: $dollarpercnt.