Of course, if you really want to use map instead of foreach: 
print map  {"$etcpw->{$_}\n"}
      sort { $a->[1] <=> $b->[1] }
      map  { $etcpw->{$_} =~ /:(\d+)/; [ $_, $1 ] }
      keys %{$etcpw};

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Caution: Contents may have been coded under pressure.

In reply to Re^4: Hash sorting (by value) woes by Roy Johnson
in thread Hash sorting (by value) woes by sschneid

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