GPT fdisk (consisting of the gdisk, cgdisk, sgdisk, and fixparts programs) is
a set of text-mode partitioning tools for Linux, FreeBSD, macOS, and Windows.
The gdisk, cgdisk, and sgdisk programs work on Globally Unique Identifier (GUID)
Partition Table (GPT) disks, rather than on the older (and once more common) Master
Boot Record (MBR) partition tables. The fixparts program repairs certain types of
damage to MBR disks and enables changing partition types from primary to logical
and vice-versa.
