What is the command to display all mounted filesystems?

The command that displays all mounted filesystems is the one that provides detailed information about each filesystem currently active on the system. The "mount" command, when used without any arguments, lists all mount points along with the filesystems that are currently mounted. This provides an overview of how the various logical volumes and partitions are connected to the filesystem hierarchy.

The other commands serve different purposes:

• "df -h" is used to report the amount of disk space used and available on filesystems, but it doesn't explicitly give the same level of detail regarding mount points.

• "lsblk" outputs a list of block devices in a tree-like format, providing details about disks and their partitions, but it does not specifically indicate which filesystems are mounted.

• "parted" is a utility for partitioning disks, so it focuses on creating and managing disk partitions rather than listing mounted filesystems.

Using the "mount" command is the most direct method to see all currently mounted filesystems, providing clarity on the system’s current state regarding storage.