fdisk
Interactive disk partition table manipulator for MBR and GPT layouts.
Synopsis
fdisk [OPTION]... [DEVICE]
Examples
sudo fdisk -l
sudo fdisk -l /dev/sda
sudo fdisk /dev/sdb
Common options
| Flag | Description |
|---|---|
| -l | List partition tables |
| -u | Display in sectors |
| -t | Specify partition table type |
| -b | Sector size |
About fdisk
The `fdisk` command interactive disk partition table manipulator for MBR and GPT layouts. Disk commands handle low-level storage operations including partitioning, formatting, filesystem checks, and block device management.
These tools are critical during system installation, storage expansion, data recovery, and performance tuning. Always exercise caution — disk operations can cause data loss if used incorrectly.
The command accepts 4 commonly used flags shown above, though the full set of options is available in the man page (`man fdisk`). The 3 examples on this page cover typical real-world usage patterns that you can copy and adapt for your own workflows.
Related commands
More Disk Commands
Other commands in the Disk category