_Added in 1.9.0_

*$lines(filename)*

Returns the total number of lines in the specified text file.

*Parameters*

table(ktable).
|*Parameter*|*Description*|
| filename | Filename to read from. |

*Example*

<pre>
;Open a file for writing
/fopen file file.txt

;Write a line to the file
/fwrite file Hello World

;Close the file
/fclose file

;Print the number of lines in file.txt
//echo -ag $lines(file.txt)
<pre>