Linux Basics (2023-01-23 - 2023-01-26)

• Course: Linux Basics

• Linux Basics PDF (unmaintained)

• Shell Scripting PDF

Course Preparation

• Windows Subsystem for Linux (WSL)

Agenda

• Introduction: Concepts and Terminology

  • Overview

  • Everything Is A File (Live Demo)

  • Processes, Scheduling, Address Spaces

  • Process Hierarchy (Parent, Child Process)

  • Environment (Variables)

• The Shell (Bash - “Bourne Again Shell”)

  • The Shell (Bash - “Bourne Again Shell”)

  • Absolute and Relative Paths

  • Special Paths

  • Directory Listings: The ls Command

  • Current Working Directory

  • Creating And Removing Files and Directories

  • Copying: cp

  • Moving and Renaming: mv

  • Symbolic Links, Hard Links

  • Shell Configuration File: ~/.bashrc

  • The Shell - Exercises

• Tools: Inspecting Text Files

  • Overview

  • cat

  • head And tail

  • cut

  • less

  • grep

  • find

  • Exercises: Inspecting Text Files

• I/O Redirection And Pipes

  • I/O Redirection

  • I/O Redirection: Swap stdout And stderr

  • Pipes

  • Exercises: IO-Redirection, Pipes

• From SSH: Secure Shell

  • SSH: Basics

  • SSH: Public Key Authentication

• File System Permissions

  • File System Permissions

  • SetUID Programs: passwd, sudo, …

  • SetUID: Live Demo

  • Default Permissions: umask

  • Ugly Hack: Sticky Bit

  • Exercises: File System Permissions

• Archiving and Compression

  • Archiving and Compression

  • gzip

  • tar

  • Exercises: Archiving And Compression

• Networking (from Linux Basics PDF)

  • netstat

  • Netcat (nc)

• Processes And Scheduling (from Linux Basics PDF)

• More about SSH

  • SSH: Secure Copy (scp)

  • SSH: Port Forwarding

  • SSH File System (sshfs)

  • SSH: Links

  • Exercises: SSH

• Exercises/Exams: Linux Basics

• Shell Scripting

  • PDF