Maybe like this? 
#!/usr/bin/perl
use strict;
use warnings;

open PO, "netstat -na|" or die "Can't pipe open: $!\n";
  my %count;
  while (<PO>) {
    next unless /^udp/ or /^tcp/;
    my @fields = split;    # split $_ on whitespace
    $count{$fields[3]}++;
    ## next jumps here
  }
close PO;

for my $ip (sort keys %count) {
  print "\t$count{$ip} $ip\n";
}

[download]

Have a nice day, j

In reply to Re^3: simple question about printing vars by reisinge
in thread simple question about printing vars by httpd

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