What Is Swap Space
This section describes swap space, reserved area on the hard disk that extends RAM to form a larger physical memory. 2025-12-29, ∼199🔥, 0💬
Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other formats. 2025-12-29, ∼195🔥, 0💬
Install Apache Tomcat on Linux
This section provides a tutorial example on how to install Apache Tomcat on Linux systems. 2024-04-12, ∼192🔥, 0💬
APT Configuration Settings and Overrides
This section provides a quick introduction of APT (Advanced Package Tool) configuration settings and overriding configuration files. 2025-12-29, ∼191🔥, 0💬
gnome-tweaks - The GNOME Tweak Tool
This section provides a tuturial example on how to install 'gnome-tweaks' to customize touchpad to simulate mouse clicks. 2025-12-29, ∼188🔥, 0💬
Publish Home Page index.html
This section provides a tutorial example on how to publish a simple 'Home Page' on Apache HTTP Server 'httpd' on Linux systems. 2023-05-26, ∼188🔥, 0💬
"traceroute" - Trace Route to Remote Host
This section provides a tutorial example on how to use 'traceroute' command to trace route (or gateways) between the local host and a given remote host. 2025-12-29, ∼186🔥, 0💬
Internet Networking Tools
This chapter provides introductions and tutorial examples about Internet networking tools. Topics include 'wget' to download Web files; 'curl' to send requests to URLs. 2025-12-29, ∼183🔥, 0💬
Connect to Wi-Fi with GNOME Settings
This section provides a tutorial example on how to use GNOME Settings to connect to Wi-Fi service. 2025-12-29, ∼182🔥, 0💬
Command Input/Output Redirection
This section provides a tutorial example on how to use command input and output redirection operators to read input files and save output files. 2025-12-29, ∼181🔥, 0💬
What Is APT
This section provides a quick introduction on APT (Advanced Package Tool), which is the default software package manager on Ubuntu computers. 2025-12-29, ∼180🔥, 0💬
earlyoom - A Simple OOM Killer
This section provides a tutorial example on how to install 'earlyoom' to prevent OOM (Out Of Memory) freeze. 2025-12-29, ∼179🔥, 0💬
GNOME Application - Image Viewers
This section introduces 3 basic image/picture viewers for GNOME desktop. gThumb seems to be a nice image browser with enough basic editing functions. 2025-12-29, ∼178🔥, 0💬
Keyboard Shortcuts on GNOME
This section lists commonly used keyboard shortcuts on GNOME on Ubuntu computers. Alt-PrtSc-S.U.B forces the system to reboot. 2025-12-29, ∼178🔥, 0💬
"apt show" - Show Software Package Details
This section provides a tutorial example on how to use the 'apt show' command to display detailed information of a given software package. 2025-12-29, ∼177🔥, 0💬
GNOME Application - Settings
This section provides a tuturial example on how to use the GNOME application 'Settings' to modify system settings. 2025-12-29, ∼177🔥, 0💬
smem - Process Memory Usage Report
This section provides a tutorial on how to install 'smem' and use it to report memory usage of each running process. 2025-12-29, ∼177🔥, 0💬
GNOME Application - Terminal
This section provides a tutorial example on how to use the GNOME application 'Terminal' to run commands interactively. 2025-12-29, ∼176🔥, 0💬
Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs. 2025-12-29, ∼176🔥, 0💬
Layers of Memory and Access Speed
This section describes layers of memory: CPU Register, CPU Caches, RAM and hard disk. 2025-12-29, ∼176🔥, 0💬
List CPU Caches and Their Sizes
This section describes how to use 'lscpu', 'lshw' and 'dmidecode' commands to list CPU caches and their sizes. 2025-12-29, ∼176🔥, 0💬
Copyright © 2026 Dr. Herong Yang. All rights reserved.