fdisk and lsblk in Linux CLI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the fdisk command in Linux?

fdisk is a tool used to create, delete, and manage disk partitions on a hard drive.

beginner

What does the lsblk command do?

lsblk lists information about all available block devices, showing their partitions and mount points in a tree-like format.

beginner

How can you view detailed partition information using fdisk without making changes?

Run sudo fdisk -l to list all partitions and disks without entering interactive mode.

intermediate

What is the difference between fdisk and lsblk?

fdisk is mainly for partitioning disks (creating/deleting partitions), while lsblk is for viewing the current block devices and their layout.

beginner

Why should you be careful when using fdisk?

Because fdisk can modify disk partitions, incorrect use can cause data loss. Always back up data before making changes.

Which command shows a tree view of disks and partitions?

A fdisk

B df

C mount

D lsblk

lsblk displays block devices in a tree format showing disks and partitions.

What option with fdisk lists partitions without entering interactive mode?

A -r

B -a

C -l

D -p

fdisk -l lists all partitions and disks.

Which command would you use to create a new partition?

A lsblk

B fdisk

C df

D mount

fdisk is used to create, delete, or modify partitions.

What does lsblk NOT show?

A File contents

B Partition mount points

C Disk sizes

D Partition types

lsblk shows device info but not file contents.

Why is it important to back up data before using fdisk?

A It can delete or corrupt partitions

B It formats filesystems automatically

C It changes file permissions

D It can slow down the system

Using fdisk incorrectly can delete or corrupt partitions, risking data loss.

Explain how you would use fdisk and lsblk together to check and modify disk partitions.

Think about viewing first, then modifying.

Describe the risks of using fdisk without proper knowledge and how to avoid them.

Focus on safety and preparation.