Hi All, I have a group of records. Based on a column(key), I'm trying to identify the duplicates and after identifying the duplicates I want to do a selective print on the duplicates.. My data is as below.... 

DATA

30380868    N Sep 29               356200        AGEC682569   ATI     
+  S
30380868 ** N Sep 29               356200        AGEC682569   ATI     
+  S
71130740    N Sep  7               SM9481        AGEC683966   ATI     
+  S
71130740 ** N Sep  7               SM9481        AGEC683966   ATI     
+  S
32450045    N Jul 14               SN9672        AGEC685203   ATI     
+  S
32450045 ** N Jul 14               SN9672        AGEC685203   ATI     
+  S
36450223    N Aug 30               SU8329        AGEC685348   ATI     
+  S
34680135    N Sep 30               349450        AGEC685442   ATI     
+  S


DESIRED OUTCOME
30380868 ** N Sep 29               356200        AGEC682569   ATI     
+  S
71130740 ** N Sep  7               SM9481        AGEC683966   ATI     
+  S
32450045 ** N Jul 14               SN9672        AGEC685203   ATI     
+  S
36450223    N Aug 30               SU8329        AGEC685348   ATI     
+  S
34680135    N Sep 30               349450        AGEC685442   ATI     
+  S

[download]
So, I will be using key column which is column1 to filter out duplicates, for eg, here column1 (30380868) is repeating.. I want to print the one with "**" as 2nd column and ignore the rest of duplicates.. If a record key column is not repeating, print as it is.. I tried this 
my %seen = ();
$seen{$_}++;
next if $seen{$_} > 1;
print;

[download]
But, it doesnt give me the desired result... Can someone please help!

In reply to Selective printing of the Duplicates by Thomas Kennll

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