Interactive tutorials

Dear friends,

I am trying to develop some (kind of) interactive bash tutorials for
docker-scripts:

I would be grateful if someone could find time to have a look and review
them. Any problems, or issues, or suggestions, can be reported at:

I am particularly interested in feedback from some beginners (e.g.
students). For example, I am not able to estimate a completion time for
each part of the tutorial. The scripts do record this time on the file
".time_spent.log", and I would be thankful if people send it to me (by
email) after completing the tutorials.

Thanks for any help or collaboration,
Dashamir

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