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# build hash while() { ... # key1 is a number # key2 is a sequential number }
foreach $key (keys %hshFoo) { print " $key => $hshFoo{$key}\n"; }
foreach $key2 (keys $hshFoo{$key}) { ... ... Type of arg 1 to keys must be hash (not hash element) at foo.pl line 341, near "}) " BEGIN not safe after errors--compilation aborted at foo.pl line 431.
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