hi fella monks, i'm having trouble on modifying the searched pattern found from a file. for example i have search this pattern in an html file.  <% INCLUDE file1.txt %> and this is located somewhere in the middle of the html file. how will i be able to replace this searched pattern with something like  <% INCLUDE file2.txt %> here's a someple of my code... now don't blame me i'm a newbie. 
 

$template  = "index.txt";
$counter   = "counter.txt";
$pos   = 0;
$found = 0;
$num   = 0;


  open (F1, "+>$template");
   @idxlines = <F1>;
    close F1;

     foreach $lines (@idxlines) {

        if ($lines =~ /<% INCLUDE  file2.txt %>/) {
            $found = 1;
              last;
          }
       $pos++;
     }


  open (F1, "+<$template");

    open (CT, "$counter");
     $num = <CT>;
    close CT;

   if ($num == 2) { $num = "1" } else { $num++ }

    open(CT, ">$counter");
      print CT $num;
    close CT;

    $idxlines[$pos] = "<% INCLUDE file$num.txt %>";
     print F1 $idxlines[$pos];
    close F1;

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i'm using the counter file to increment the file(num).txt. i don't know if i'm doing it right... please help me. thanks in advance.

In reply to modifying the search pattern of a file. by damian

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