What Is Apache Tomcat
This section provides a quick introduction of Apache Tomcat, a Java application server, or as a Java servlet container. 2024-04-12, ∼224🔥, 0💬
"find" - Search for Files
This section provides a tutorial example on how to use 'find' command to search for files in a directory tree. '-name' and '-size' are 2 commonly used search conditions. 2022-10-01, ∼219🔥, 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, ∼217🔥, 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, ∼215🔥, 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, ∼215🔥, 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, ∼212🔥, 0💬
Install Apache Tomcat on Linux
This section provides a tutorial example on how to install Apache Tomcat on Linux systems. 2024-04-12, ∼211🔥, 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, ∼208🔥, 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, ∼208🔥, 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, ∼204🔥, 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, ∼200🔥, 0💬
Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs. 2025-12-29, ∼199🔥, 0💬
GNOME Application - Video Players
This section provides a tutorial example on how to use the GNOME application 'Terminal' to run commands interactively. 2025-12-29, ∼198🔥, 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, ∼197🔥, 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, ∼196🔥, 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, ∼195🔥, 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, ∼195🔥, 0💬
"shutdown" and "halt/poweroff/reboot" Commands
This section provides a quick introduction of the 'shutdown' command, and its alias commands 'halt', 'poweroff', and 'reboot'. 2025-12-29, ∼194🔥, 0💬
Thunderbird Installation on macOS
This section provides a tutorial example on how to install Thunderbird on macOS computers as an email client tool, also called MUA (Mail User Agent). 2022-10-01, ∼194🔥, 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, ∼193🔥, 0💬
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