What is the best way to take notes, take notes, write down the material covered?

Question

Books

Good day.
How, in what and where, do you take notes, snippets, completed material from courses,
necessary fragments from the documentation?
It's great if the solution works in Linux.

Answer 1

MyTetra
Also look at an interesting article by the author The Most Needed Program in the World on Habré.

Answer 2

You cut out cards with the size of a pack of cigarettes, for the beginning there are 10 pieces.
On one side of the card you write a question, and on the other side you write an answer. So on all the cards, it can be anything, some command, theorem, formula, etc.
You put it in your pocket and go for a smoke break or for a walk, take out the cards and read the question, try to remember, if you couldn’t turn it over, look at the answer and remember it again, and so on until it sticks in your memory.

Answer 3

I like Google Keep

Answer 4

How, in what and where, do you take notes, snippets, completed material from courses,
necessary fragments from the documentation?

I don’t see the point, during stupid rewriting (whatever my favorite teachers say), I don’t remember anything I write, it’s much more productive for me to read the material thoughtfully. But we are all different and for some, note-taking can be useful.
But here's why I don't understand why to save fragments from the documentation point-blank. You can download it and look for what you need.

Answer 5

To Trello

Answer 6

CherryTree
Zim
go on all systems

Answer 7

I opted for Microsoft OneNote: hierarchy, synchronization, storage of large amounts of data.

Answer 8

www.essentialpim.com