Hashes don't interpolate within quoted strings. You need to do something like this instead:
foreach my $last_name ( keys %people ) { print "Last name is $last_name.\n\tDetails are:\n"; print map { "$_: " . $people->{$last_name}{$_} . "\n\t" } keys %{$people->{$last_name}}; print "\n"; }
That's untested, so you may have to tinker with it to get your exact desired output, but it should help.
Dave
In reply to Re: hashes of hashes
by davido
in thread hashes of hashes
by valavanp
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