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APT Package Archives and Metadata
This section provides a quick introduction on APT (Advanced Package Tool) cached archive and metadata files. 2025-12-29, ∼183🔥, 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, ∼183🔥, 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, ∼182🔥, 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, ∼181🔥, 0💬

Virtual Memory vs. Physical Memory
This section describes virtual memory, which is mapped to physical memory through MMU (Memory Management Unit). 2025-12-29, ∼181🔥, 0💬

"route" - Manage Routing Table
This section provides a tutorial example on how to use 'route' command to view and update the routing table for network traffic. 2025-12-29, ∼181🔥, 0💬

GCC - C/C++ Compiler
This chapter provides introductions and tutorial examples about GCC C/C++ compilers. Topics include installing GCC C/C++ compilers; GCC compilation steps and settings; 'g++ -I' for include header files; g++ -l' for static/dynamic library files; 'g++ -shared' for building shared object (dynamic libra... 2022-10-01, ∼181🔥, 0💬

Virtual Memory Mapping and Page Table
This section describes virtual memory page, physical memory frame, and page table that maps a page to a frame. 2025-12-29, ∼180🔥, 0💬

"who | w" - Logged-in Users and Their Running Commands
This section provides a tutorial example on how to display logged-in users and their running commands using 'who' and 'w' commands on Ubuntu systems. 2025-12-29, ∼180🔥, 0💬

"jobs" - Manage Background Jobs
This section provides a tutorial example on how to use 'jobs' command to display background jobs, which are processes with input detached the keyboard. You can start a background job by adding the 'ampersand' sign to the end of the commmad. 2025-12-29, ∼180🔥, 0💬

Manage "apt" Package Repositories
This section provides a quick introduction on 'apt' package repositories, which are defined in the /etc/apt/sources.list file. 2025-12-29, ∼180🔥, 0💬

Administrative Tasks
This chapter provides introductions and tutorial on Ubuntu administrative task. Topics include shutting down and restarting system, moving /home to new partition, moving all users to a new system. 2025-12-30, ∼178🔥, 0💬

Shell - The Command-Line Interpreter
This chapter provides introductions and tutorial examples on Ubuntu shells, which are command-line interpreters and scripting languages. '/bin/bash' is the default shell for interactive sessions. '/bin/dash' is the default shell for shell scripts. 2025-12-29, ∼178🔥, 0💬

"ps -o rss,drs,trs,vsz,sz" - Process Status Options
This section provides a tutorial on how to 'ps -o rss,drs,trs,vsz,sz' command to report memory usage of each running process. 2025-12-29, ∼178🔥, 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, ∼178🔥, 0💬

/proc/{id}/smaps - Process Memory Map Details
This section describes the pseudo file '/proc/{id}/smaps' that represents virtual memory map of a given process with detailed information on each mapped area. 2025-12-29, ∼177🔥, 0💬

"gzip/gunzip" - Compressed *.gz Files
This section provides a tutorial example on how to use 'gzip' and 'gunzip' commands to compress large files and restore them later. Compressed files will have the *.gz file name extension. 2025-12-29, ∼176🔥, 0💬

SSH Protocol and ssh/scp Commands
This chapter provides introductions and tutorial notes on SSH (Secure SHell) protocol and 'ssh/scp' commands. Topics include SSH connection steps; user password and public key authentication methods; SSH server configuration settings; 'ssh' for remote login sessions; 'scp' for copying remote files. 2025-12-29, ∼175🔥, 0💬

Shell Session Command History
This section provides a tutorial example on how to use Bash shell command history functionalities. 2025-12-29, ∼174🔥, 0💬

Truncate Log Files
This section provides a tutorial example on how to truncate log files in Ubuntu computers. 2025-12-30, ∼173🔥, 0💬

"cURL" - Client for URL
This section provides a tutorial example on how to use 'cURL' command to send requests to a remote server in different protocols in URL format. 2025-12-29, ∼173🔥, 0💬

Install and Manage PHP Packages on CentOS
This section provides a tutorial example on how to install PHP 7.2 on CentOS 8 systems using 'dnf/yum' as the package manager. 2022-10-01, ∼173🔥, 0💬

What Is GNOME
This section provides a quick introduction of GNOME, an open-source desktop environment needed to run graphical applications like Firefox to browse the Internet. 2025-12-29, ∼172🔥, 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, ∼172🔥, 0💬

<< < … 8 9 10 11 12 13 14 15 16 > >>   ∑:379  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO