pastebin - collaborative debugging

#!/usr/bin/perl
# makenotes.pl A text splitting tool for iPod Notes
# (C) 2008 Matthijs Dalhuijsen (GPL)
local $|=1;
unless (@ARGV) {
 print "makenotes -- formats text documents for usage on iPod\n";
 print "Usage: $0 <filename(s)>\n";
 exit(1);
}
foreach my $file (@ARGV) {
 if (-f $file) {
  print "$file exists\n";
  &chopfile($file);
 } else {
  print "$file not found\n";
 }
}
sub chopfile {
 my $f = shift;
 open(F,$f);
 my @txt = split(//,join("",<F>));
 print "processing $f\n";
 print "Please give a title for this book\n> ";
 my $title = <STDIN>;
 chomp($title);
 print "creating dir and splitting file into subfiles in 3 seconds\n";
 sleep(1);
 print "2\n";
 sleep(1);
 print "1\n";
 sleep(1);
 mkdir($title);
 chdir($title);
 my $i = 0;
 open(IF,">".$title."_".$i.".txt");
 for (my $x = 0; $x < @txt; $x++) {
  print IF $txt[$x];
  if ($x % 3800 == 0) {
   print IF "<TITLE>$i $title</TITLE>";
   print IF "<a href=\"".$title."_".($i-1).".txt\">prev (".($i-1).")</a> ";
   print IF "<a href=\"".$title."_".($i+1).".txt\">prev (".($i+1).")</a> ";
   print IF "<br><br>";
   $i++;
   open(IF,">".$title."_".$i.".txt");
   print $title."_".$i."\n";
  }
 }
}