Firstly, you don't need a regex to pull the last two characters off your data. Use substr instead...

my $string = "1234,Dr,Huxtable,Cliff,M,24/12/1976,60";
my $last_two_chars = substr($string, -2, 2);
print $last_two_chars . "\n";
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Secondly, as you're passing comma delimited data, just pulling two chars seems over simplified, best to split it by comma (assuming no commas in your data, see Text::CSV for better parsing), give your columns some proper names, and access your data in a readable fashion...

my $temp_col_id = 0;
my %COLUMN_IDS_BY_NAME = map {$_, $temp_col_id++} qw(num1 title surnam
+e firstname sex dob num2);


my @split_data = split /,/, $string;
print $split_data[$COLUMN_IDS_BY_NAME{num1}] . "\n";
print $split_data[$COLUMN_IDS_BY_NAME{title}] . "\n";
print $split_data[$COLUMN_IDS_BY_NAME{firstname}] . "\n";
# etc...
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