[Tutor] Monitoring a logfile

[Stephen Nelson-Smith]

Varnish has a dedicated (but not always) reliable logger service.  I'd
like to monitor the logs - specifically I want to check that a known
entry appears in there every minute (it should be there about 10 times
a minute).

What's going to be the best way to carry out this kind of check?  I
had a look at SEC, but it looks horrifically complicated.

Could someone point me in the right direction?  I think I basically
want to be able to check the logfile every minute and check that an
entry is in there since the last time I met....  I just can't see the
right way to get started.

S.