Linux

What is Linux?

Linux is the open-source operating system that runs most servers, cloud infrastructure, Android phones and embedded devices worldwide.

Knowing the command line, file system and basic administration lets you work where modern software actually runs.

Why employers value it

The cloud runs on Linux, so employers expect engineers to navigate it confidently. Command-line fluency, permissions and shell scripting are core to DevOps, cybersecurity and back-end roles.

How to learn it

Install a Linux distro or use WSL, then live in the terminal. Learn navigation and file management first, then permissions, processes and simple Bash scripts.

• Navigate the file system and manage files from the terminal
• Understand users, permissions and processes
• Write basic Bash scripts to automate tasks
• Learn package management and SSH

Careers that use it

Linux skills are vital for DevOps engineers, system administrators, cybersecurity analysts, cloud engineers and back-end developers.

Market outlook

With cloud and containers everywhere, Linux proficiency remains in steady, durable demand and pairs powerfully with Docker, Kubernetes and AWS.