I have a script as below which is taking input from a xml file 
#!/usr/bin/perl -w
use strict;
use XML::Simple;

my $servers = XMLin('file.xml');
my %seen;
foreach my $server (@{$servers->{server}}) {
my $node =  $server->{Node} . "\n";
my $lanip = $server->{LanIP} . "\n";
my $mask = $server->{Netmask} . "\n";

substr($lanip, 11, 3) = "0";
push(my @array, $lanip) if ! $seen{$lanip}++;
print "@array\n";

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Here as you see I am substituting the last digit of the IP with '0' which gives me a bunch of IPs but I only want to grep unique IPs. With current script I get below output 
192.169.30.0






192.169.31.0


192.169.32.0
192.169.72.0

[download]

Lots of blank spaces. I want to remove them and store it into a global variable/array which can be used later.

The output should be something like below 
192.169.30.0
192.169.31.0
192.169.32.0
192.169.72.0

[download]
Also if possible I am trying to do this without List::MoreUtils Module.

In reply to grep unique values , remove the blank spaces and store it in a variable by deep27ak

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