Here's a similar approach: 
# snip

my %hash;
$hash{$_}=1 for (@updatelist);
$hash{$_}=0 for (@storelist);

for (keys %hash) {
  push @finallist, $_ if ($hash{$_});
}

[download]
ie: "make list of new addresses, but cross off those already used".

..02

cLive ;-)

In reply to Re: Answer: How to find out if X is an element in an array? by cLive ;-)
in thread How to find out if X is an element in an array? by juahonen

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