Something like this? 
my $str = 'a|b|c|d|e|f|g|h|i|';
$str =~ s/(?:.*?\|){3}\K/\n/g;
print $str;

__END__
a|b|c|
d|e|f|
g|h|i|

[download]

In reply to Re: Parsing a Pipe delimied file by trizen
in thread Parsing a Pipe delimied file by anjamesc

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