In version b6_0, p121
The next two steps of our scenario, both of the form “I successfully run ‘some command,’” are defined by Aruba,
And it is not clearly how it works to beginner, I searched inside the book, can’t find the clue.
Later I noticed, it seems it should be added in one line in
Since the aruba’s official documentation is not good enough (I checked the source codes to understand), it will be very nice you can add more sentence to describe how it works and several patterns