fdisk

fdisk [device] (interactive) or fdisk -l (list partitions)

A partition table editor for creating, deleting, and inspecting partitions on a disk.

// FLAGS

-llist all partitions on all detected disks, non-interactively

// EXAMPLE

fdisk -l — prints every disk and its partitions, sizes, and types without entering the interactive editor.

// GOTCHA

fdisk's classic (MBR-oriented) interface can mishandle GPT disks larger than 2TB — gdisk or parted is the safer tool for modern GPT drives; on macOS, Apple recommends diskutil over the legacy BSD fdisk for anything beyond inspection.

// RELATED COMMANDS

lsblk mount diskpart