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To monitor if a new USB keyboard was being detected when I plugged it into the system I used:udevadm real-time monitoring of usb ports, To see if a device is plugged into USB or unplugged, real time monitoring showing when a USB device is connected or disconnected. sudo udevadm monitor --subsystem-match=usb udevadm monitor --subsystem-match=usb Does not require sudo. As soon as you connect any USB device, be it a USB flash drive or USB keyboard, mouse, etc details will be displayed. Also when disconnected.