udevadm:tldr:85599

This command is used to gather information about a specific device, in this case, /dev/sda1 which is likely a partition on the first hard drive.

Let's break down the command:

• sudo is a command that allows users to run programs with the security privileges of another user, typically the superuser (or root).
• udevadm is a command-line tool used for querying and modifying the udev device manager.
• info is the sub-command that provides information about a device.
• --attribute-walk is an option that instructs udevadm to display information about all attributes and their values for the specified device. It provides a more detailed output.
• --path is an option to specify the path of the device to gather information about.
• ${-dev-sda1} is a variable representing the device path or device node that is being queried for information. In this case, it points to /dev/sda1.

Overall, this command, when executed with root privileges, will display detailed information and attributes of the /dev/sda1 device.