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Disk and Storage

fdisk

Views and edits partition tables.

fdisk is an interactive partitioning tool. It can list partitions safely, but writing changes modifies disk layout.

Syntax
fdisk [options] device

Arguments explained

  • device is a disk such as /dev/sda, not usually a partition.
  • -l lists partition tables.

Common examples

List partitions
sudo fdisk -l

Shows detected disk partition tables.

Open a disk for editing
sudo fdisk /dev/sdb

Starts interactive editing for that disk.

fdisk Command
FieldDetails
Commandfdisk
CategoryDisk and Storage
Primary useViews and edits partition tables.
Syntaxfdisk [options] device

Related articles

parted

Creates and edits partition tables, including GPT.

lsblk

Lists block devices in a tree.

blkid

Shows block device identifiers and filesystem metadata.