What command can be used to clear the kernel ring buffer?

Prepare for the LPI 101-500 Certification Exam. Utilize flashcards, navigate multiple choice questions, and benefit from hints and explanations. Begin your Linux certification journey today!

The command to clear the kernel ring buffer is typically represented in the form of dmesg --clear or dmesg -C. This command effectively clears the messages that the kernel has logged, which can be useful for monitoring new kernel events without old messages cluttering the output.

The kernel ring buffer is a circular buffer in memory that stores messages generated by the kernel, such as system events and hardware errors. By clearing this buffer, you reset the view, making it easier to diagnose current issues or review new logs.

It's important to note that while options like clear --dmesg, reset kernel, and flush dmesg may seem plausible at first glance, they do not represent actual commands that exist within the Linux command-line structure for managing the kernel message buffer. Therefore, using dmesg --clear ensures that users can effectively manage and view the kernel's logging output without confusion from past entries.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy