joey___joey@yahoo.com
martha___martha@aol.com

##</code><code>##

open (IN, "filename.txt") or die "can't open filename.txt!";
while ( $line = <IN> ) {
  @parts = split /___/, $line;
  push @names, $parts[0];
  push @addresses, $parts[1];
}
close IN;

##</code><code>##

$names[0]

##</code><code>##

$addresses[0]

##</code><code>##

open (IN, "filename.txt") or die "can't open filename.txt!";
while ( $line = <IN> ) {
  @parts = split /___/, $line;
  $name = $pts[0];
  $address = $pts[1];
  $hash{$name} = $address;
}
close IN;

##</code><code>##


print "joey's address is ", $hash{"joey"}, ".\n";