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Linux Intermediate

What is Kernel?

The core component of an operating system that manages hardware resources and provides services to software.

The kernel is the fundamental part of an operating system. It acts as a bridge between applications and the actual data processing done at the hardware level. The Linux kernel, created by Linus Torvalds in 1991, is open-source and powers everything from smartphones (Android) to supercomputers.

Key responsibilities include process management, memory management, device drivers, and system calls. The kernel operates in a privileged mode (kernel space) separate from user applications (user space).

Related Terms

Xargs
A command that builds and executes commands from standard input, useful for processing lists of items.
Wget
A command-line utility for downloading files from the web, supporting HTTP, HTTPS, and FTP protocols.
Iptables
The traditional Linux firewall tool that filters network packets using configurable chains of rules organized in tables.
Strace
A diagnostic tool that traces system calls and signals made by a process, useful for debugging and performance analysis.
LVM (Logical Volume Manager)
A storage management framework that provides flexible disk management through abstract layers of physical and logical volumes.
RAID
Redundant Array of Independent Disks โ€” a technology combining multiple physical drives into a single unit for performance, redundancy, or both.
View All Linux Terms โ†’