To expand on anonymonk's accurate but terse comment.

Both -w> and <c>use warnings; turn on the warnings diagnostics, it's a matter of scope.

use warnings; turns on warnings-checking in the file containing the statement (local scope). -w set warnings for your file and any used modules (global scope).

You usually (probably) want use warnngs; routinely.

----
I Go Back to Sleep, Now.

OGB

In reply to Re^2: how to turn off warning message by Old_Gray_Bear
in thread how to turn off warning message by chuckd

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