The first step is to get your tree into a data structure. Then you (recursively) traverse it, and for each node that contains one leave you delete that, and attach it to the root node.

And yes, perl is perfectly suitable for that.

If you have more specific questions, ask them. And once you've started to write perl code, show us what you have when you need more help.

In reply to Re: Moving data in a tree by moritz
in thread Moving data in a tree by hoffmann

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