Learning Linux

No idea if this is the correct forum to start this thread, if not maybe somebody could move it to somewhere else.

I am using Linux distro’s for 15 years now, almost 16 now that I think about it. Started with Ubuntu’s Hardy Heron 8.04.
On a daily basis I can manage myself pretty well, but I want more. I want to learn the inside of a Linux distro. What I mean with that is that, for example, I like to know what happens when I press the ON button on the laptop. The boot process itself is covered already but what happens when the kernel gets the power, which files are loaded/examined, etc? How are programs started, what exactly happens there? In other words I like to have a close look under the hood.
I have seen tons of Youtube videos about bash and scripting but that is not what I am looking for now.
Who can point me to websites where I can find something good to read, books, video’s, whatever is out there?

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I guess the place you posted is OK.

Do I understand it right, when you are interested the part where systemd / run-levels come into the scene?
Se illustration on the link bellow.

If yes to my question you might have a look at:
journalctl |grep systemd


This is wonderful, I have seen the name Baeldung before but not looked into it.
Thank you very much. Should you know more about the ins and outs of a Linux system, you know where to post it. :grinning:

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I would recommend this book for learning everything about Linux (but I’m biased :wink: ).

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(but I’m biased :wink: )
I see what you mean. :upside_down_face:

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