#!/usr/bin/perl
if( $ARGV[0] ){
   $filename=$ARGV[0];
}else{
   print "USAGE: getUserAgent <logfile name>\n";
   exit;
}


open FILE,"</path/$filename" or die "Can't open /path/$filename because $!";
$over=0;
while( <FILE> ){
   if( m/\b(Mozilla\b.*)/ ){
      print "$1\n";
      $over++ if( (length $1) > 100 );
   }
}
print "$over over 100\n";