[perl] pulling variables

[Evan]

Perl questions:


In my code I have the variable $custidno
now i take a file into a string, and I print it onto
the page, in this file there is the take $custidno.

the problem is, that it actually shows up in that form on the paper (the variable is not inserted if you read it from the file. )

How would I read it in such a way that it gets the proper value.

(not PHP: PERL)

 sub get_page {
    open TL, "templates/cargo.htm"
      or die "Template not found! ($!)";

    while (<TL>) {
        $html .= "$_";
    }
}