my %seen = map {$_=>1} <DATA>;

 use Data::Dumper;

  print Dumper \%seen;

__DATA__
dddd@fgg.com
cccc@fgg.com
eeee@fgg.com
dddd@fgg.com

[download]
*UPDATE:
If you care about the order of display then you can use this:
  print join "\n", sort{$a cmp $b} keys %seen;

*Note: That was based on the assumption, that the original ORDER of data was inconsequential.
Limbic~Region Thanks for pointing that out.

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

In reply to Re^3: Removal of duplicated element in array. by 2teez
in thread Removal of duplicated element in array. by tty1x

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