The docs on fork perlfork say that parent and child share the same seek pointer:

Any filehandles open at the time of the fork() will be dup()-ed. Thus, the files can be closed independently in the parent and child, but beware that the dup()-ed handles will still share the same seek pointer. Changing the seek position in the parent will change it in the child and vice-versa. One can avoid this by opening files that need distinct seek pointers separately in the child.

So I find it surprising that this version works.

In reply to Re^3: How can I read DATA in parent and child? by hdb
in thread How can I read DATA in parent and child? by Skeeve

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