In message <mtupsyxsc0x.fsf@contents-vnder-pressvre.mit.edu>, "Nathan J. Willia
ms" writes:
>The MIT Athena newsyslog(8) did the latter with config-file-specified
>filter flags, to run arbitrary commands. See
>http://web.mit.edu/source/athena/etc/newsyslog/.

... Well, they already did everything I want.  Any reason we shouldn't
just steal it?

-s