Linux Tutorials - Herong's Tutorial Examples


Book Description

This book is a collection of notes and sample codes written by the author while he was learning Linux systems. Topics include using Cockpit Web portal for admin tasks; managing users and groups; managing files and directories; managing NTFS, CIFS, EXT4, LBA, LVM file systems; using network tools and security firewall; installing CentOS systems; using SELinux (Security-Enhanced Linux) system; DNF/YUM software package manager; SSH Server configuration and client tools; managing vsftpd - Very Secure FTP daemon; managing directory service with OpenLDAP; Updated in 2024 (Version v5.44) with email topics moved to 'Email Tutorials' book. For latest updates and free sample chapters, visit https://www.herongyang.com/Linux.




Perl Tutorials - Herong's Tutorial Examples


Book Description

This Perl tutorial book is a collection of notes and sample codes written by the author while he was learning Perl language himself. Topics include introduction of ActivePerl; data types, variables and expressions; scalars, arrays, hash maps, and references; input/output and file systems; DBM files and MySQL access; socket communication; generating executables; XML::Simple and RPC:XML modules; LWP::UserAgent, HTTP::Request and SOAP::Lite modules; CGI, and IIS/Apache integrations. Updated in 2024 (Version v6.02) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/Perl.




Python Tutorials - Herong's Tutorial Examples


Book Description

This Python tutorial book is a collection of notes and sample codes written by the author while he was learning Python language himself. Topics include: installing Python environments on Windows, macOS and Linux computer; Python built-in data types; variables, operations, expressions and statements; user-defined functions; iterators, generators and list/set/dictionary comprehensions; modules and packages; sys, os, and pathlib modules; Anaconda Python environment manager; Jupyter Notebooks; NumPy, SciPy libraries. Updated in 2024 (Version v2.15) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/Python.




Mac Tutorials - Herong's Tutorial Examples


Book Description

This book is a collection of notes and sample codes written by the author while he was learning macOS. Topics include Macintosh OS history; macOS basic functionalities; storage file systems; reviewing resource usage on running processes; installing productivity and programming tools; installing Java and related tools; installing Apache Web server and MySQL database server; using Keychain Access to manage passwords and certificates. Updated in 2023 (Version v3.07) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/Mac.




JDBC Tutorials - Herong's Tutorial Examples


Book Description

This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. Topics include installing JDK and Derby database server; using Derby JDBC driver; database connection URLs; introduction to Result Set; Meta Data, Prepared Statement, CLOB, and BLOB; connection pooling with DBCP and C3P0. Updated in 2024 (Version v3.13) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/JDBC.




MySQL Tutorials - Herong's Tutorial Examples


Book Description

This MySQL tutorial book is a collection of notes and sample codes written by the author while he was learning MySQL himself, an ideal tutorial guide for beginners. Topics include introduction of Structured Query Language (SQL); installation of MySQL server on Windows, Linux, and macOS; using MySQL client program; accessing MySQL server from PHP, Java and Perl programs; SQL data types, literals, operations, expressions, and functions; Statements of Data Definition Language (DDL), Data Manipulation Language (DML), and Query Language; creating and using indexes; using window functions; stored procedures; transaction management; locks and deadlocks; InnoDB and other storage engines. Updated in 2023 (Version v4.46) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/MySQL.




Email Tutorials - Herong's Tutorial Examples


Book Description

This book is a collection of notes and sample codes written by the author while he was learning email systems. Topics include email message transmission protocols: SMTP, IMAP, POP3; secure connections with SSL/TLS protocols; managing Postfix server as MSA, MTA and MDA agents; managing Dovecot server for email retrieval with IMAP and POP3 protocols; Thunderbird and other email client tools. Updated in 2024 (Version v1.03) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/Email.




PHP Tutorials - Herong's Tutorial Examples


Book Description

This PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP himself. Topics include PHP script syntax; data types, variables, array, expressions, statements and functions; Web server integration; HTTP requests and controlling HTTP responses; sessions, cookies, and file uploads/downloads; MySQL database server access; files, directories, and ZIP archives; parsing HTML Documents; processing image files; SOAP extension; managing non-ASCII characters; classes and objects; using PHP on Windows, macOS and Linux; executing external programs on operating system. Updated in 2022 (Version v5.16) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/PHP.




Java GC Tutorials - Herong's Tutorial Examples


Book Description

This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Generational GC, Regional GC, Heap Memory Management, Young/New Generation, Tenured/Old Generation, Object Reference, Eden Space, Survivor Spaces, Minor GC, Major GC, Full GC, Performance Tuning, Throughput/Latency Performance, Heap Footprint. Updated in 2024 (Version v1.12) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/Java-GC.




Unicode Tutorials - Herong's Tutorial Examples


Book Description

This Unicode tutorial book is a collection of notes and sample codes written by the author while he was learning Unicode himself. Topics include Character Sets and Encodings; GB2312/GB18030 Character Set and Encodings; JIS X0208 Character Set and Encodings; Unicode Character Set; Basic Multilingual Plane (BMP); Unicode Transformation Formats (UTF); Surrogates and Supplementary Characters; Unicode Character Blocks; Python Support of Unicode Characters; Java Character Set and Encoding; Java Encoding Maps, Counts and Conversion. Updated in 2024 (Version v5.32) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/Unicode.