udevadm:tldr:d21c0

The command "sudo udevadm monitor" is used to monitor the events happening in the Linux kernel's device manager, specifically related to device changes, hardware additions/removals, and device properties.

Here's a breakdown of the command:

• "sudo": It is a command that allows a user to execute another command with administrative (root) privileges. It prompts for the user's password before executing the command.
• "udevadm": It is a utility used for managing dynamic device nodes in Linux. It provides various functionalities related to device management.
• "monitor": It is an option/command provided by udevadm utility to display real-time monitoring of udev events.

When you run "sudo udevadm monitor" in the terminal, it opens a monitoring session that continuously displays information about any changes or events that occur within the device manager. It helps in observing the specific actions taking place when devices are connected or disconnected from the system, such as plugging/unplugging USB devices, detecting device attributes, etc.

The monitoring output generally includes details like device paths, events, action types, and associated attributes. This information can be useful for troubleshooting device-related issues, understanding device discovery, and automating certain actions based on detected events.