What command displays the current partition sizes and mount points in Linux?

The command that displays the current partition sizes and mount points in Linux is commonly known as the "df" command. This command provides an overview of the filesystem disk space usage, showing how much space is used, available, and the percentage usage for each mounted filesystem.

The "df" command outputs details such as the filesystem name, size, used space, available space, and the mount point, making it useful for administrators who need to assess storage utilization on their system.

The "blkid" command is used to display information about block devices, including their UUIDs and filesystem types, but does not show the sizes or mount points in an easily readable format. The "du" command is used to estimate file and directory space usage rather than providing information on partitions. Lastly, the "mount" command shows currently mounted filesystems and their mount points but lacks the output related to partition sizes. Thus, the "df" command is the most appropriate choice for displaying partition sizes and mount points.