How to find the type of board, revision etc

#1

If running on Debian/Ubuntu how can the type of board e.g. Rock Pi 4b, E, S, N10 etc, the version of the board v1.3 v1.4 be found.

#2

The hardware version is printed on the PCB silkscreen, currently it can not be read by the software.

#3

If the file model found in /sys/firmware/devicetree/base/ available and contains the correct information for the other type of boards?

#4

The device tree contains the right model(4/S/E/N10 etc), but doesn’t contains the hardware revision.