An update (as a new post to avoid confusion):

It took a while but eventually it sank in: Ma and the AM who wrote Split Tab separated text file into valid and invalid records (presumed to be the same person) asked two quite distinct questions. My past node replied to the AM, whilst ignoring the specs in the top node.

So (JBIC & because I have time-on-my-hands awaiting a particular event), herewith, a solution that satisfies both (I think) in one (didactic) script:

#!/usr/bin/perl 
use strict; 
use warnings; 

# 1055276   (see also my splitTOscalars.pl)
# OP valid: $dt (AKA 'name')is alpha , datefield using slashes, balanc
+edue field is numeric
# second post as AM: split problems

my ($dt, $account, $baldue);

while (<DATA>) { 
    chomp; 
    ($dt, $account, $baldue) = split/\t/;   # was:   split("\t"); 
    if ($dt =~ /[A-Z]+/i && $account =~ /^[\d\/]+$/ && $baldue =~ /^[\
+d.,]+$/) {
        print "\n VALID per OP: \$dt: $dt | \$account: $account | \$ba
+ldue: $baldue \n\n"; 
    }elsif ($dt =~ /[a-z]+/) {
        print "Invalid: $dt -|- $account -|- $baldue \n";
    }else {
        print "\nValid  per #1055280 \$dt, \$account, \$baldue:  $dt, 
+$account, $baldue\n"; 
    }
} 

=head OUTPUT  

Valid  per #1055280 $dt, $account, $baldue:  4-11-13, 273.13, 273.13

Valid  per #1055280 $dt, $account, $baldue:  20130512, 11.17, 36.14

Valid  per #1055280 $dt, $account, $baldue:  09222013, 2479.00, 6481.1
+6

 VALID per OP: $dt: xyz | $account: 09/30/2013 | $baldue: 500

Invalid: abc -|- 09/30/2013 -|- YYN
Invalid: del -|- hfhfh -|- 200

=cut

__DATA__
4-11-13    273.13    273.13
20130512    11.17    36.14
09222013    2479.00    6481.16
xyz    09/30/2013    500
abc    09/30/2013    YYN
del    hfhfh    200
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