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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, ∼152🔥, 0💬

Memory Management
This chapter provides introductions and tutorial notes on memory management. Topics include memory layers and access speed; cache memory levels; virtual memory and physical memory mapping; page table; buffers, caches and swap spaces; memory usage reporting tools: free, ps, smem, pmap, /proc/meminfo,... 2025-12-29, ∼156🔥, 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, ∼149🔥, 0💬

References
List of reference materials used in this book. 2025-12-29, ∼158🔥, 0💬

Move All Users to a New System
This section provides a tutorial example on how to move all users to a new Ubuntu system. 2025-12-29, ∼160🔥, 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, ∼150🔥, 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, ∼143🔥, 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, ∼139🔥, 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, ∼151🔥, 0💬

"split" and "cat" - Split and Join Files
This section provides a tutorial example on how to use 'split' command to split it into chunks and use 'cat' command to join chunks back into a single file. 2025-12-29, ∼154🔥, 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, ∼144🔥, 0💬

"ps" - Display Current Processes
This section provides a tutorial example on how to use 'ps' command to display current process on the system. 2025-12-29, ∼147🔥, 0💬

pmap - Process Memory Map
This section provides a tutorial on how to install 'smem' and use it to report memory usage of each running process. 2025-12-29, ∼141🔥, 0💬

Process Management
This chapter provides introductions and tutorial on managing processes on Ubuntu systems. Topics include 'ps' to display processes; 'jobs' and other commands to manage background jobs. 2025-12-29, ∼144🔥, 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, ∼168🔥, 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, ∼149🔥, 0💬

"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, ∼148🔥, 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, ∼150🔥, 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, ∼135🔥, 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, ∼154🔥, 0💬

APT Package Archives and Metadata
This section provides a quick introduction on APT (Advanced Package Tool) cached archive and metadata files. 2025-12-29, ∼145🔥, 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, ∼152🔥, 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, ∼153🔥, 0💬

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. 2025-12-29, ∼147🔥, 0💬

<< < 1 2 3 4 5 6 7 8 9 … > >>   ∑:9026  Sort:Rank

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