> So...list context on the left, which then creates an anonymous array, which array, when evaluated in boolean/scalar context, produces the length of the array?

No arrays involved, not even anonymous!

It's just a list-assignment in scalar context.

I would say much more performant than the former solution.

Cheers Rolf

PS:

> Despite the admonition not to use <> for globbing?

Source?

In reply to Re^5: Using grep and glob to find directories containing file by LanX
in thread Using grep and glob to find directories containing file by Anonymous Monk

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