Perl won't do this for you automatically, you have to program it. I agree with chadys advice, storing the entries in a database of some sort would be better than just storing the html.

anyways, here's what you can do with your version of the program:

You need to keep track of when it's time to write a new file. That means you need a counter of some sort. You'll have to store the counter in a different file again, maybe counter.txt.

open(C, "counter.txt") and $c = <C> and close C and $c++;
open(C, ">counter.txt") and print C $c and close C;
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Let's say you want to start a new file every time the counter reaches a multiple of 10. You might call the files that contain the html "view0.htm" for the first 10 entries, "view1.htm" for the next 10, and so on.

$fileno = int($c / 10);
$filename = "view" . $fileno . ".htm";
open(DASH,">>$filename"); 
print DASH "print the entry here";
close DASH
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That's almost all. If you want to have Links from one page of the guestbook to the next, you have two options: do it in HTML, with frames (yuck, I hate frames) or write the links into the view*.htm files. Putting the "back" at the top of each page:

if (int($c / 10) == $fileno ) {
   # this is the first time we write to this
   # file, because $c is 10 or 20 or 30 or ...
   # link back to the one before

   print DASH "<a href=view" . ($fileno-1) . ".htm>Back</a>";
}
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and the "Next" link at the bottom is probably the easiest:

if ( $c % 10 == 9 ) {
   # this is the last time we write to this
   # file, because $c is 9 or 19 or 29 or 39 or ...
   # link on to the next one 

   print DASH "<a href=view" . ($fileno+1) . ".htm>Next</a>";
}
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Assembling these code snippets in the right order is left as an exercise to the student ;-)

--
Brigitte    'I never met a chocolate I didnt like'    Jellinek
http://www.horus.com/~bjelli/         http://perlwelt.horus.at

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