lsblk
lsblk is a command-line utility in Unix-like operating systems that lists information about all available or specified block devices, such as hard drives, SSDs, and partitions. It displays details like device names, sizes, mount points, and types in a tree-like format, making it useful for system administration and disk management tasks. The tool is part of the util-linux package and is commonly available on Linux distributions.
Developers should learn lsblk when working with Linux systems to quickly inspect disk configurations, identify storage devices, and troubleshoot issues related to disks or partitions. It is particularly useful in scenarios like setting up new drives, managing partitions, or diagnosing boot problems, as it provides a clear overview without requiring complex commands or graphical tools.