Ubuntu Tutorials - Herong's Tutorial Examples
∟Introduction to Ubuntu Systems
This chapter provides introductions and tutorial on Ubuntu operating systems. Topics include 'uname' to display operating system information; 'free' to display memory usages; 'who' to display logged-in users; 'w' to display commands running by logged-in users.
What is Ubuntu
hostnamectl - Display System Information
"free" - Display Free and Used Memory
"who | w" - Logged-in Users and Their Running Commands
Takeaways:
- "systemctl" command displays operating system information.
- "free” command displays memory (RAM) usages.
- "who" command displays logged-in users.
- "w" command displays what commands are running by logged-in users.
Table of Contents
About This Book
►Introduction to Ubuntu Systems
GNOME - Desktop Interface and Environment
Shell - The Command-Line Interpreter
Process Management
Memory Management
Files and Directories
APT (Advanced Package Tool)
Network Connection on Ubuntu
Internet Networking Tools
SSH Protocol and ssh/scp Commands
Administrative Tasks
References
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