192.168.1.199 hostname62a.domain.com hostname62a
192.168.1.200 hostname62b.domain.com hostname62b
192.168.1.201 hostname62.domain.com  hostname62
192.168.2.144 hostname62amgt.domain.com hostname62amgt
192.168.2.145 hostname62bmgt.domain.com hostname62bmgt

##</code><code>##

my $ha1 = "hostname62a";
my $ha2 = "hostname62b";

my $cmd1 = "egrep -i \"\\b$ha1\\b|\\b$ha2\\b\" /etc/hosts";

open(HOSTS1, "$cmd1|");
while(<HOSTS1>) {
    chomp;
    push (@hosts_ha1, $_);
}
close(HOSTS1);
##</code><code>##

192.168.1.199 hostname62a.domain.com hostname62a
192.168.1.200 hostname62b.domain.com hostname62b

##</code><code>##

192.168.1.199 hostname62a.domain.com hostname62a
192.168.1.200 hostname62b.domain.com hostname62b
192.168.1.201 hostname62.domain.com  hostname62
192.168.2.144 hostname62a-r.domain.com hostname62a-r
192.168.2.145 hostname62b-r.domain.com hostname62b-r

##</code><code>##

192.168.1.199 hostname62a.domain.com hostname62a
192.168.1.200 hostname62b.domain.com hostname62b
192.168.2.144 hostname62a-r.domain.com hostname62a-r
192.168.2.145 hostname62b-r.domain.com hostname62b-r

##</code><code>##

192.168.1.2 hostname-node1.domain.com hostname-node1
192.168.1.3 hostname-node2.domain.com hostname-node2
192.168.1.4 hostname-node1mgt.domain.com hostname-node1mgt
192.168.1.5 hostname-node2mgt.domain.com hostname-node2mgt

##</code><code>##

192.168.1.2 hostname-node1.domain.com hostname-node1
192.168.1.3 hostname-node2.domain.com hostname-node2