Linux Intermediate

What is Fdisk?

A command-line utility for managing disk partition tables on Linux systems.

Fdisk creates, deletes, resizes, and manages partitions on hard drives and SSDs. It supports MBR (Master Boot Record) partition tables. For GPT (GUID Partition Table), use gdisk or parted instead.

Usage: fdisk /dev/sda opens the interactive partition editor. Common operations include creating new partitions (n), deleting (d), changing types (t), listing (p), and writing changes (w). Always back up data before partitioning.

Related Terms

A command that displays kernel ring buffer messages, useful for diagnosing hardware and driver issues.

ACL (Access Control List)

An extension to standard Linux file permissions that allows setting fine-grained access rights for specific users and groups beyond owner/group/other.

A command that runs a process immune to hangup signals, allowing it to continue after the terminal session ends.

A background process that runs continuously on a system, typically providing services like web serving or logging.

Linux Kernel Module

A piece of code that can be loaded into the kernel at runtime to extend functionality without rebooting, such as device drivers and filesystems.

A command that sets or displays resource limits for user processes, such as maximum open files or memory usage.

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