Linux / Unix Command: fdisk
fdisk - Partition table manipulator for Linux
fdisk [-u] [-b sectorsize] [-C cyls] [-H heads] [-S sects] device
fdisk -l [-u] [device ...]
fdisk -s partition ...
Hard disks can be divided into one or more logical disks called partitions. This division is described in the partition table found in sector 0 of the disk.