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Linux

Linux is an operating system family widely used for servers, containers, development machines, and cloud infrastructure.

What Is Linux​

Linux systems are built around the Linux kernel plus command-line tools, services, packages, users, files, permissions, and processes.

How To Use Linux​

Use a terminal to navigate files, install packages, manage services, inspect processes, and configure the system.

Basic Example​

pwd
ls -la
sudo apt update
ps aux

Common Concepts​

  • Files and directories form a single tree.
  • Users and permissions control access.
  • Processes run programs.
  • Services run background workloads.

What To Learn Next​

Learn permissions, systemd, package managers, logs, networking, SSH, firewalls, and shell scripting.