Why am I getting the following output when I use warnings?
ive tried it a couple different ways but am always getting
similar results.

There are 3 hosts down
There are 1 hosts alive

The following hosts are alive:
pcbackup
Use of uninitialized value in concatenation (.) or string
at ./mship.pl line 33.


The following hosts are down:
host1
host2
host3
Use of uninitialized value in concatenation (.) or string
at ./mship.pl line 38.


#!/usr/bin/perl

use strict;
use warnings;
use Net::Ping;

my @hosts = qw/host1 host2 host3 pcbackup/;
# my $net="myhost\.com"; # unused for now
my $proto="icmp";
my $p = Net::Ping->new($proto);

my @uphosts=();
my @downhosts=();

foreach my $host(@hosts) {
        if ($p->ping($host)) {
                push (@uphosts, $host);
        } else {
                push (@downhosts, $host);
        }
}

$p->close();

$#downhosts++;
$#uphosts++;

print "There are $#downhosts hosts down\n";
print "There are $#uphosts hosts alive\n\n";

print "The following hosts are alive: \n";
foreach my $item (@uphosts) {
        print "$item\n";
}

print "\nThe following hosts are down: \n";
foreach my $item (@downhosts) {
        print "$item\n";
}

[download]

Thanks in advance
Ted

In reply to how is this uninitialized? by tcf03

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