How to use the dmesg command: 2-Minute Linux Tips

The video tutorial explains the D message command, which displays the kernel message buffer content. It covers how to view timestamps in seconds and nanoseconds since the last system reboot and how to convert them to real-time format. The tutorial also demonstrates filtering kernel and daemon messages using specific options and highlights the importance of exploring the help command to understand the various options available. The video concludes with a focus on using D message to gain insights into system operations and how to display only emergency messages.

What can you do to see the available options for the 'd message' command?

What does the command display if there are no emergency messages generated?