#!/usr/bin/perl
use strict;
use warnings
my $file = "Name.txt";
open(IN, "<", $file) or die "I cannot open a file: $file ";

# close file:

close IN;

##</code><code>##

#!/usr/bin/perl
use strict;
use warnings
my $file = "Name.txt"
open(IN, "<", $file) or die "I cannot open a file: $file ";

while(my $line =<IN>){ ## reading a file line by line
  # here you need to put some regular expression to identify your web addresses
}

##</code><code>##

www.1  5
www.2  7
www.3  2
...

##</code><code>##

#hey, what is my current count for www.2 ?
my $value = $hash{"www.2"};
print "$value\n"; # What does "\n" stand for?

##</code><code>##

#!/usr/bin/perl
use strict;
use warnings
my $file = "Name.txt";
open(IN, "<", $file) or die "I cannot open a file: $file ";
my %hash = ();

while(my $line =<IN>){ ## reading a file line by line
  # here you need to put some regular expression to identify your web addresses
  # from regular expression extract the WWW address and put it into some variable like my $www = $1;

  #hey, what is my current count for some www ? 
  my $value = $hash{$www};

  #OK, cool add one to it :) 
  $value = $value + 1;

  #Good, now put it back.
  $hash{$www} = $value;
  
}
#close file
close IN;

# Print my averages
foreach my $key (keys %hash){

  print "$key\t" . (($hash{$key}/$total)*100) . "\%\n"; # hey where did my $total come from (I'll leave that to you :))?
}