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"tmux" - Terminal Multiplexer
This section provides a tutorial example on how to use 'tmux' tool to manage multiple shells as windows and panes in a single terminal. 'tmux' automatically keeps all shells running when the terminal is disconnected.
2025-12-29, ∼108🔥, 0💬

References
List of reference materials used in this book.
2025-12-29, ∼108🔥, 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, ∼108🔥, 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, ∼108🔥, 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, ∼108🔥, 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, ∼108🔥, 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, ∼108🔥, 0💬

Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs.
2025-12-29, ∼108🔥, 0💬

Bash Shell Session Customization
This section provides a tutorial example on how to modify Bash configuration files to customize Bash shell sessions.
2025-12-29, ∼108🔥, 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, ∼108🔥, 0💬

What Is Shell
This section provides a quick introduction of shell programs on Ubuntu computer. Bash (Bourne Again SHell) is the default shell program.
2025-12-29, ∼108🔥, 0💬

Buffer Memory and Cache Memory
This section describes buffer memory and cache memory, which are temporary memory allocations in the free RAM area to improve data input and output performance on hard disk.
2025-12-29, ∼108🔥, 0💬

"tar -c" and "tar -x" - Create and Extract Archive Files
This section provides a tutorial example on how to use 'tar -c' command to compress multiple file and sub-directories into an archive file and use 'tar -x' command to extract files out of an archive file.
2025-12-29, ∼108🔥, 0💬

Files and Directories
This chapter provides introductions and tutorial on file and directory management. Topics include commands to search and find files, read text files in different ways, split, join and truncate files, compress and restore files, archive and extract filesm.
2025-12-29, ∼107🔥, 0💬

"g++ -shared" to Build Dynamic Library
This section provides a tutorial example on how to use 'g++ -shared' commands to compile your code and to build dynamic library file on Linux systems.
2022-10-01, ∼103🔥, 0💬

Running MySQL Database Server on Linux Systems
This chapter provides introductions and tutorial examples about MySQL database server on CentOS systems. Topics include installing MySQL 8.0 on CentOS 8; starting and stoping 'mysqld' as a system service; setting MySQL 'root' password; MySQL file and data locations; MySQL log files; backing up MySQL...
2022-10-01, ∼100🔥, 0💬

Install MySQL Database Server on CentOS
This section provides a tutorial example on how to install MySQL 8.0 server on CentOS 8 systems using 'dnf/yum' as the package manager.
2022-10-01, ∼100🔥, 0💬

Manage MySQL Server 'mysqld' on CentOS
This section provides a tutorial example on how to start and stop MySQL server program 'mysqld' as a system service on CentOS 8 systems using the 'systemctl' command.
2022-10-01, ∼100🔥, 0💬

Set MySQL Server "root" Password on CentOS
This section provides a tutorial example on how to set or reset 'root' password, in case it has no password or you can not remember the password, for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

MySQL Server File Locations on CentOS
This section provides a tutorial example on how to find and view MySQL Server file locations for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

MySQL Server Data Backups on CentOS
This section provides a tutorial example on how to create backups of MySQL databases and load it back to another MySQL server for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

MySQL Server Log Files on CentOS
This section provides a tutorial example on how to review log file settings and locations for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

MySQL Server Socket Connection on CentOS
This section provides a tutorial example on how to use the Socket Connection for client programs from the same host as the MySQL 8 Server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

MySQL Server TCP/IP Connection on CentOS
This section provides a tutorial example on how to use the TCP/IP Connection for client programs from any hosts to connect to the MySQL 8 Server on CentOS 8 systems.
2022-10-01, ∼100🔥, 0💬

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