How to use the stap -L option?

Question

I am following the SystemTap tutorial and I am trying to do exercise 1 from section 2.3 - "Tracing. Exercises". The -L option seems to never work. I got this script:

probe kernel.function("*nit*"){}

I type in a terminal:

$ stap -L PROBE t.stp

and nothing happens.

Answer 1

$ stap -L 'kernel.function("blahblah")'

Systemtap is great, but poor documentation.