From open:
The filehandle will be closed when its reference count reaches zero. If it is a lexically scoped variable declared with my, that usually means the end of the enclosing scope. However, this automatic close does not check for errors, so it is better to explicitly close filehandles, especially those used for writing

In reply to Re: Scoping question - will file handle be closed? by toolic
in thread Scoping question - will file handle be closed? by Monk::Thomas

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