Flush buffers on a specific device using blockdev utility.
Determine session type (X11, Wayland).
Display CPU information.
Improve apt download times by using apt-fast a shell-script wrapper for apt, apt-get or aptitude.
Upgrade Ubuntu 21.10 LTS (Long Term Support) to the latest development version of Ubuntu 22.04 release.
Display information about NVMe storage device.
Share USB device over network using usbip utility.
Use DPMS (Display Power Management Signaling) to turn screen on or off.