# this will take a file and read it in and resolve hostname 
# to ip address 
#####################################################################
print "What file do you want to read?";
chomp($InFile = <STDIN>);
open(IN,$InFile) ||
    die "Cannot open $InFile: $!";
open(OUT,">results.txt") ||
    die "Cannot create results.txt: $!";
	while (<IN>) {
	my $hostname = $_;
	chomp $hostname;
	@addr = gethostbyname($hostname);    # note: an array now
	splice(@addr, 0, 4);                 # get rid of other stuff
	foreach (@addr)
	{
	    print OUT join('.', unpack('C4', $_)) ."\t" . $hostname . "\n";
	}
	}

close(IN);
close(OUT);