Without totally re-engineering nmap in Perl I can't think of a better way of doing it than: 

#!/usr/bin/perl -w

use strict;

my @hosts = qw(localhost);

HOST:
foreach my $host (@hosts )
{
   open(NMAP, "nmap -O $host |") || next;

   while(<NMAP>)
   {
      chomp;
      if(/Remote operating system guess: (.*)/)
      {
         print "$host $1\n";
         next HOST;
      }
   }
}

[download]
You will need to run this as root and update the value of @hosts appropriately. 

/J\

In reply to Re: Remote server OS identification by gellyfish
in thread Remote server OS identification by aleatoric

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