Question

What is the use of the dmesg command?

(a) Sending messages to the device connected

(b) Reading messages generated from avrdude

(c) Receiving messages from the gcc compiler

(d) Receiving messages from the particular device

The question was asked during an online exam.

I want to ask this question from Uploading topic in portion Arduino Programming of Arduino

Answer 1

Right choice is (d) Receiving messages from the particular device

To elaborate: The dmesg command is used for displaying any messages like errors or warnings that a device might have issued to the system. It can give us 3 things; the time, i.e. the time after startup when the message was generated, the device name, and the message text or message content.