I don't really understand your question, but this:
%hash = { 'chapter' => ...};

[download]
is wrong. { } returns a reference to a hash, which is a scalar. Either use ( ) or change %hash to $hash.

In reply to Re: how can i replace a hash key with other hash value? by cdarke
in thread how can i replace a hash key with other hash value? by satzbu

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