100+ Linux Things you Need to Know

Summary by Krater

This video covers 101 essential Linux concepts, tools, and commands, explaining kernel functions, user space, terminal usage, file systems, permissions, processes, package managers, and popular distributions.

From the video

Answers: What are the essential Linux concepts, commands, and tools I need to know?

• Linux kernel architecture
• Terminal and shell commands
• File systems and permissions
• Process management and daemons
• Linux distributions and package managers

What it concludes

• Linux is an operating system kernel written in C that sits between software applications and hardware.
• The kernel runs at privilege ring zero, while user space applications run at ring three.
• File permissions use symbolic characters or octal notations to manage read, write, and execute access for owners, groups, and others.
• The PATH environment variable contains directories separated by colons used by Linux to locate executable binaries.