lsblk:tldr:f46f8

The command lsblk -a is used to list information about all available block devices on a Linux system, including all disks, partitions, and virtual devices. Here's a breakdown of the command: - lsblk: This is the main command to list block devices in a tree-like format.

• -a: This option tells lsblk to display all available block devices, including empty devices or hidden system devices that are typically not shown. When you run lsblk -a, you will see a output that includes information such as the device name, major and minor device numbers, device size, device type (disk, partition, or virtual), mount points if any, and the parent device in case of nested devices. Note: Running lsblk -a may provide a lot of output on systems with multiple disks and partitions, so you may need to scroll or use a pager command like less to view the complete list.