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  1. or download this
    # SPLIT THE IP-ADDRESSES INTO FOUR =STRINGS= BY
# THE PERIOD CHARACTER.
my ($a1, $a2, $a3, $a4) = split('.', @$a);
  2. or download this
    >perl -wMstrict -le
"my $s = 'a.bb.ccc.d';
...
@ra elements: 0
escaped dot
  'a'  'bb'  'ccc'  'd'