use strict;

my $find = '^(H0|HT)';

	open (NEW, ">", "OUTPUT.txt" ) or die "could not open:$!";

	open (FILE, "<", "INPUT.txt") or die "could not open:$!";

		while (<FILE>) {
		print NEW if /^(.{32}$find)/;
	}
close (FILE);
close (NEW);

##</code><code>##


-------------------

INPUT FILE:

JANE, DOE        HT000000000 123 50 70 80
JOHN, DOE JR     H0000000000 123 50 70 80
WILLIAM, DOE     HT000000000 123 50 70 80

-------------------

EXPECTED OUTPUT FILE:

HT000000000 123 50 70 80
H0000000000 123 50 70 80
HT000000000 123 50 70 80