Night classes in English

Linux being what it is, it's something you ought to download yourself, and use available online resources to work out how to do what you want with it.
If you can't do that, you'll be nigh on useless as a Linux professional.
Books can be useful too.
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You're unlikely to find any formal training in anything technical through nightschool. It's all done through day classes at a cost of around €300/day.