_Added in 1.9.0_

*$readn*

Returns the line number that was matched in a previous call to [[$read]]. If no match was found, [[$readn]] is set to zero.

*Example*

<pre>
; Read a random line from the file 'file.txt'.
//noop $read(file.txt)

; Print the line number from the last $read.
//echo -ag Line number from the last read was: $readn
</pre>