Understanding the disk usage on a Linux system is crucial for maintaining its health and performance. Checking disk usage provides valuable insights into the available storage space, allowing users to identify potential storage issues, optimize resource allocation, and prevent data loss.
There are several methods to check disk usage in Linux, each offering unique advantages and catering to specific scenarios. The most commonly used commands include “df,” “du,” and “lsblk.” The “df” command provides a concise summary of disk usage for all mounted filesystems, while “du” delves deeper by recursively calculating the disk usage for specified directories and files. “lsblk” offers a comprehensive view of block devices, including their size, usage, and mount points.