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"lsof" - List of Open Files
This section provides a tutorial example on how to use 'lsof' command to display network connections as open files
2025-12-29, ∼145🔥, 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, ∼145🔥, 0💬

hostnamectl - Display System Information
This section provides a tutorial example on how to display operating system information using the 'uname' and other commands on Ubuntu systems.
2025-12-29, ∼145🔥, 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, ∼145🔥, 0💬

"sudo apt install/remove" - Install/Remove Package
This section provides a tutorial example on how to use the 'apt install/remove' command to install or remove a given software package.
2025-12-29, ∼144🔥, 0💬

What is Ubuntu
This section provides a quick introduction of Ubuntu, the most popular Linux distribution.
2025-12-29, ∼144🔥, 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, ∼144🔥, 0💬

Truncate Log Files
This section provides a tutorial example on how to truncate log files in Ubuntu computers.
2025-12-30, ∼143🔥, 0💬

Bash Command Line Interpretation Steps
This section describes major processing steps, when a command line is entered at the Bash shell prompt.
2025-12-29, ∼143🔥, 0💬

GNOME - Desktop Interface and Environment
This chapter provides introductions and tutorial examples on GNOME, which is the default desktop interface and environment on Ubuntu computers. Topics include introduction of GNOME; keyboard shortcuts; gnome-tweaks package; main applications: Settings, Files and Terminal; image viewers; video player...
2025-12-29, ∼143🔥, 0💬

Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs.
2025-12-29, ∼143🔥, 0💬

Shell Session Command History
This section provides a tutorial example on how to use Bash shell command history functionalities.
2025-12-29, ∼143🔥, 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, ∼142🔥, 0💬

Move /home Directory to New Partition
This section provides a tutorial example on how to move /home directory to a new partition when it runs out of space. A better solution is to extend its file system.
2025-12-29, ∼142🔥, 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, ∼142🔥, 0💬

/proc/{id}/maps - Process Memory Map
This section describes the pseudo file '/proc/{id}/maps' that represents virtual memory map of a given process.
2025-12-29, ∼142🔥, 0💬

"netstat" - Display Network Statistics
This section provides a tutorial example on how to use 'netstat' command to display network statistics
2025-12-29, ∼142🔥, 0💬

"ifconfig" - Trace Routes to Remote Host
This section provides a tutorial example on how to use 'ifconfig' command to view and manage network interface configurations.
2025-12-29, ∼142🔥, 0💬

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, ∼142🔥, 0💬

"free" - Display Free and Used Memory
This section provides a tutorial example on how to display free and used memory information using the 'free' command on Ubuntu systems.
2025-12-29, ∼142🔥, 0💬

"xz/unxz" - Compressed *.xz or *.lzma Files
This section provides a tutorial example on how to use 'xz' and 'unxz' commands to compress large files and restore them later. Compressed files will have the *.xz file name extension.
2025-12-29, ∼142🔥, 0💬

"compress/uncompress" - Compressed *.Z Files
This section provides a tutorial example on how to use 'compress' and 'uncompress' commands to compress large files and restore them later. Compressed files will have the *.Z file name extension.
2025-12-29, ∼141🔥, 0💬

"zip" and "unzip" - Create and Extract ZIP Files
This section provides a tutorial example on how to use 'zip' command to compress multiple file and sub-directories into a ZIP file and use 'unzip' command to extract files out of a ZIP file.
2025-12-29, ∼141🔥, 0💬

What Is Bash (Bourne Again SHell)
This section provides a quick introduction of Bash shell created by Brian Fox in 1989.
2025-12-29, ∼141🔥, 0💬

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