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Linux Tech Enthusiast
Linux Tech Enthusiast
May 16, 2026 · Fundamentals

Beginner-Friendly Guide to Linux Shell Programming

This article provides a step‑by‑step tutorial on Linux shell programming for beginners, covering variable naming rules, string manipulation, script creation, environment variable handling, arithmetic operations, user input, logical and string operators, as well as common file and directory commands, all illustrated with concrete code examples and screenshots.

ArithmeticBashEnvironment Variables
0 likes · 19 min read
Beginner-Friendly Guide to Linux Shell Programming
Lisa Notes
Lisa Notes
Mar 30, 2026 · Fundamentals

Python Basics: Common Strings and an Introduction to Lists

This tutorial note walks through Python variables, demonstrates how lists can store multiple heterogeneous items, explains list declaration, indexing, modification, and shows two ways to iterate over a list with concrete code examples and their output.

ListsPythonStrings
0 likes · 3 min read
Python Basics: Common Strings and an Introduction to Lists
Linux Tech Enthusiast
Linux Tech Enthusiast
Mar 24, 2026 · Fundamentals

Master Makefile: From Basics to Advanced Techniques

This guide walks through Makefile fundamentals—including targets, dependencies, commands, variables, pattern rules, automatic variables, functions, conditional statements, includes, custom functions, multi‑target handling, phony targets, and debugging techniques—providing concrete examples and code snippets that enable readers to build and manage both small and large projects efficiently.

Build AutomationMakefileVariables
0 likes · 6 min read
Master Makefile: From Basics to Advanced Techniques
Lisa Notes
Lisa Notes
Mar 16, 2026 · Fundamentals

Java Basics: Variables and Constants Explained from Scratch

This note introduces Java constants and variables, covering their definitions, naming conventions, declaration syntax, initialization rules, multiple declarations, and how constants differ from mutable variables through concrete code examples.

ConstantsVariablesjava
0 likes · 7 min read
Java Basics: Variables and Constants Explained from Scratch
Linux Tech Enthusiast
Linux Tech Enthusiast
Jan 15, 2026 · Fundamentals

Master Linux Shell Scripting: From Basics to Real‑World Projects

This article provides a step‑by‑step guide to Linux shell scripting, covering the definition of a shell, common shells, naming rules, environment and user variables, control‑flow statements, functions, arrays, and several practical scripts such as a Hello World program, service checks, system backup, information collection, and one‑click LNMP deployment.

ArraysControl FlowLinux
0 likes · 23 min read
Master Linux Shell Scripting: From Basics to Real‑World Projects
Raymond Ops
Raymond Ops
Nov 3, 2025 · Operations

Master Shell Scripting: A Hands‑On Guide to Bash Basics and Advanced Tricks

This comprehensive tutorial explains what a shell is, introduces common shell types, walks through creating and executing shell scripts, covers variables, quoting, special parameters, environment settings, and demonstrates practical string manipulation and batch‑renaming techniques for Linux users.

BashEnvironment VariablesShebang
0 likes · 17 min read
Master Shell Scripting: A Hands‑On Guide to Bash Basics and Advanced Tricks
Fun with Large Models
Fun with Large Models
Oct 31, 2025 · Artificial Intelligence

How to Use Coze Variables and Long‑Term Memory in Low‑Code Agent Development (Part 6)

This guide walks through Coze’s variable and long‑term memory features, showing how to define and use variables for user data, configure persistent memory, and combine both to build personalized, context‑aware AI agents, with step‑by‑step screenshots, code snippets, and real‑world scenarios.

AI agentsCozeLong-term Memory
0 likes · 14 min read
How to Use Coze Variables and Long‑Term Memory in Low‑Code Agent Development (Part 6)
php Courses
php Courses
Sep 29, 2025 · Backend Development

Master PHP’s extract() Function: Convert Arrays to Variables Safely

This article explains how PHP's extract() function transforms array key‑value pairs into variables, details the syntax, flag options, prefix usage, provides practical examples, and highlights important precautions to avoid naming conflicts and security issues.

ArrayExtractPHP
0 likes · 4 min read
Master PHP’s extract() Function: Convert Arrays to Variables Safely
php Courses
php Courses
Sep 11, 2025 · Backend Development

Master PHP’s extract() Function: Convert Arrays to Variables Safely

This guide walks through PHP’s extract() function, showing its basic syntax, the role of the $flags and $prefix parameters, common flag options, practical code examples, and essential precautions to safely convert array key‑value pairs into variables.

ArrayExtractPHP
0 likes · 4 min read
Master PHP’s extract() Function: Convert Arrays to Variables Safely
Model Perspective
Model Perspective
Aug 25, 2025 · Fundamentals

Master Python Basics: Variables, Control Flow, Functions, and More

This comprehensive guide introduces Python's core syntax and concepts—including its history, variables, data types, operators, control structures, functions, built‑in data structures, exception handling, and module usage—providing readers with a solid foundation for effective programming.

Data StructuresVariablesfunctions
0 likes · 11 min read
Master Python Basics: Variables, Control Flow, Functions, and More
Open Source Linux
Open Source Linux
Jul 16, 2025 · Operations

Master Shell Basics: From What a Shell Is to Advanced Variable Tricks

This comprehensive guide explains what a shell and shell script are, compares common shells, shows how to write and run scripts, explores variable types, special and environment variables, and demonstrates powerful string manipulation and batch‑renaming techniques for Linux users.

BashEnvironmentLinux
0 likes · 16 min read
Master Shell Basics: From What a Shell Is to Advanced Variable Tricks
Liangxu Linux
Liangxu Linux
Jul 13, 2025 · Fundamentals

Master Shell Scripting: From Basics to Advanced Tricks and Performance Tips

This comprehensive guide explains what a shell is, compares common shells, walks through creating and running shell scripts, covers shebang usage, execution methods, variable types, special and environment variables, substring manipulation, built‑in commands, performance benchmarking, and provides practical examples for Linux system automation.

BashEnvironmentLinux
0 likes · 18 min read
Master Shell Scripting: From Basics to Advanced Tricks and Performance Tips
php Courses
php Courses
Jul 8, 2025 · Fundamentals

Master C++ Variables: Types, Declarations, Naming Rules & Conversions

This guide explains what variables are in C++, covers declaration and initialization, details fundamental data types such as int, float, double, char, and bool, outlines naming conventions, and demonstrates both implicit and explicit type conversions with clear code examples.

C++Data TypesVariables
0 likes · 7 min read
Master C++ Variables: Types, Declarations, Naming Rules & Conversions
Python Programming Learning Circle
Python Programming Learning Circle
Jun 6, 2025 · Fundamentals

Master Python Basics: Variables, Data Types, Operators, and Control Flow

This guide introduces Python's core fundamentals, covering its concise syntax, commenting styles, dynamic variables, primary data types, input/output functions, a full range of operators, control‑flow statements, and essential data structures such as lists, tuples, dictionaries and sets, complete with examples and visual illustrations.

Control FlowData StructuresPython
0 likes · 9 min read
Master Python Basics: Variables, Data Types, Operators, and Control Flow
MaGe Linux Operations
MaGe Linux Operations
May 28, 2025 · Operations

Master Shell Scripting: From Basics to Advanced Tricks

This comprehensive guide walks you through the fundamentals of shell and shell scripting, covering common shells, script creation, shebang usage, variable handling, environment variables, string manipulation, and practical examples to boost your Linux automation skills.

BashEnvironmentLinux
0 likes · 19 min read
Master Shell Scripting: From Basics to Advanced Tricks
php Courses
php Courses
May 23, 2025 · Fundamentals

Getting Started with Go: Hello World and Basic Syntax

This article introduces the classic “Hello, World!” program in Go, explains the language’s basic syntax—including package declaration, imports, functions, variables, constants, data types, control structures, loops, and comments—and provides instructions for running and formatting Go code.

Control structuresGoHello World
0 likes · 8 min read
Getting Started with Go: Hello World and Basic Syntax
JD Tech Talk
JD Tech Talk
Apr 25, 2025 · Fundamentals

Comparing Go and Java: Language Features, Syntax, and Concurrency

This article compares Go and Java by examining their core language features, code organization, visibility rules, variable and constant declarations, method and function syntax, interface implementation, basic and reference data types, error handling mechanisms, and control‑flow constructs, providing Java developers with a concise guide to Go's design principles and cloud‑native strengths.

Error HandlingGoSyntax Comparison
0 likes · 23 min read
Comparing Go and Java: Language Features, Syntax, and Concurrency
php Courses
php Courses
Mar 18, 2025 · Fundamentals

Understanding Variables and Data Types in Python

This article introduces Python variables as containers for data, explains naming rules, demonstrates variable assignment with examples, outlines common data types such as numbers, strings, booleans, lists, tuples, sets, and dictionaries, and describes type conversion functions for effective data handling.

Data TypesPythonVariables
0 likes · 4 min read
Understanding Variables and Data Types in Python
Liangxu Linux
Liangxu Linux
Mar 8, 2025 · Fundamentals

Master Shell Scripting: From Basics to Advanced Control Structures

This guide explains what a shell script file is, how to write Bash scripts with proper syntax, manage variables, use redirection, pipes, quoting, grep, operators, arrays, control flow statements, functions, and even automate interactions with an Expect script, providing clear examples for each concept.

BashControl structuresShell
0 likes · 11 min read
Master Shell Scripting: From Basics to Advanced Control Structures
Test Development Learning Exchange
Test Development Learning Exchange
Feb 21, 2025 · Fundamentals

Understanding Variable Definition and Usage in Python

This article introduces Python variable fundamentals, explaining how to define, assign, and manipulate variables of various types—including integers, floats, strings, booleans, lists, and dictionaries—through ten clear examples that illustrate common programming scenarios.

PythonTutorialVariables
0 likes · 5 min read
Understanding Variable Definition and Usage in Python
Test Development Learning Exchange
Test Development Learning Exchange
Feb 7, 2025 · Fundamentals

Python Basics: Print, Variables, Data Types, Control Flow, Functions, and More

This comprehensive tutorial introduces Python fundamentals, covering print statements, variable definition and assignment, data type conversion, conditional and loop structures, function creation and invocation, input handling, comments, indentation rules, program exit methods, operators, slicing, collections, file I/O, exception handling, and module imports.

Control FlowData TypesPython
0 likes · 33 min read
Python Basics: Print, Variables, Data Types, Control Flow, Functions, and More
php Courses
php Courses
Jan 14, 2025 · Backend Development

Using PHP’s is_object Function to Check Variable Types

This article explains how PHP’s built‑in is_object function can be used to determine whether a variable is an object, demonstrates its syntax, provides a complete code example with both an object and an array, and clarifies the distinction between objects and arrays.

BackendPHPVariables
0 likes · 4 min read
Using PHP’s is_object Function to Check Variable Types
Linux Kernel Journey
Linux Kernel Journey
Jan 12, 2025 · Fundamentals

Master CMake Basics: A Simple, Step‑by‑Step Guide to Build Automation

This article walks you through why CMake is a more elegant, cross‑platform alternative to hand‑written Makefiles, explains its core benefits, and provides a complete, hands‑on tutorial that covers the basic workflow, a minimal project example, multi‑source handling, and multi‑directory organization with clear code snippets.

Build AutomationCMakeMakefile
0 likes · 13 min read
Master CMake Basics: A Simple, Step‑by‑Step Guide to Build Automation
Test Development Learning Exchange
Test Development Learning Exchange
Dec 13, 2024 · Fundamentals

Understanding Python Variables: Concepts, Scope, Lifecycle, and Practical API Testing Examples

This article explains Python variable fundamentals—including naming rules, assignment, scope, and lifecycle—provides basic code examples, and demonstrates advanced usage of variables in API automation testing through dictionaries, class configurations, enums, result tracking, and context managers.

Code ExamplesPythonVariables
0 likes · 9 min read
Understanding Python Variables: Concepts, Scope, Lifecycle, and Practical API Testing Examples
Test Development Learning Exchange
Test Development Learning Exchange
Dec 3, 2024 · Fundamentals

Python Programming Fundamentals

This tutorial covers Python's core programming concepts including variables, data types, control structures, functions, object-oriented programming, and file operations, providing a comprehensive foundation for beginners.

Data TypesOOPPython
0 likes · 16 min read
Python Programming Fundamentals
php Courses
php Courses
Nov 25, 2024 · Backend Development

How to Use PHP's is_object Function to Check Variable Types

This article explains the PHP is_object function, its syntax, and demonstrates with code examples how to determine whether a variable is an object or not, highlighting the difference between objects and arrays and the importance of proper type checking in backend development.

BackendPHPVariables
0 likes · 3 min read
How to Use PHP's is_object Function to Check Variable Types
Test Development Learning Exchange
Test Development Learning Exchange
Nov 1, 2024 · Fundamentals

Comprehensive Python Basics: Variables, Data Types, Control Structures, Functions, OOP, Standard Library, and More

This article provides a comprehensive Python tutorial covering variables, data types, control structures, functions, classes, standard library modules, file I/O, exception handling, comprehensions, generators, decorators, modules, virtual environments, coding style, and Git version control, complete with example code snippets.

Control structuresPythonStandard Library
0 likes · 14 min read
Comprehensive Python Basics: Variables, Data Types, Control Structures, Functions, OOP, Standard Library, and More
MaGe Linux Operations
MaGe Linux Operations
Oct 20, 2024 · Fundamentals

Master Bash Built‑In Variables: From $0 to $PATH Explained with Real Examples

This guide explains Bash’s built‑in variables—$0, positional parameters $1…$9, special parameters like $#, $*, "$*", $@, "$@", $!, $_, $$, $PPID, $?, $BASH, $BASH_VERSION, $EUID, $UID, $GROUPS, $HOME, $HOSTNAME, $IFS, $PATH, $OLDPWD, $PWD, $PS1, $PS2, $PS4—detailing their meanings, typical use cases, and providing runnable code snippets and output illustrations.

BashVariablescommand-line
0 likes · 15 min read
Master Bash Built‑In Variables: From $0 to $PATH Explained with Real Examples
Liangxu Linux
Liangxu Linux
Oct 10, 2024 · Fundamentals

How Pointers Were Invented: From Memory Addresses to C Variables

This article explains how memory addresses are numbered, why direct writes are risky, how symbolic variables simplify programming, the limitations of pass‑by‑value in C, and how introducing pointers provides the necessary indirection to manipulate memory safely and efficiently.

C languageMemoryVariables
0 likes · 7 min read
How Pointers Were Invented: From Memory Addresses to C Variables
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Sep 20, 2024 · Fundamentals

Understanding JavaScript Pre‑compilation and Hoisting

This article explains JavaScript's pre‑compilation process, including variable and function declaration hoisting, the creation of execution contexts, and the differences between var, let, and const, using several illustrative code examples to clarify how the engine resolves identifiers at runtime.

JavaScriptPre-compilationVariables
0 likes · 7 min read
Understanding JavaScript Pre‑compilation and Hoisting
Linux Cloud Computing Practice
Linux Cloud Computing Practice
Aug 7, 2024 · Operations

Master Shell Scripting: Core Commands, Variables, Loops, and Functions Explained

This comprehensive guide walks you through the fundamentals of Linux shell scripting, covering why it matters, essential prerequisites, variable handling, string manipulation, arithmetic operations, condition testing, control structures like if/else, for/while loops, functions, case statements, and array usage, all with clear examples and practical code snippets.

ArraysBashLinux
0 likes · 34 min read
Master Shell Scripting: Core Commands, Variables, Loops, and Functions Explained
Python Programming Learning Circle
Python Programming Learning Circle
Jul 8, 2024 · Fundamentals

Python Variable Usage, Naming Conventions, and Common Operations

This article teaches Python developers how to write cleaner, more elegant code by mastering variable unpacking, underscore placeholders, type annotations, PEP 8 naming rules, numeric literals, floating‑point precision handling with Decimal, boolean arithmetic tricks, and a wide range of string manipulation techniques, all illustrated with practical code examples.

DecimalPythonString Manipulation
0 likes · 10 min read
Python Variable Usage, Naming Conventions, and Common Operations
Code Mala Tang
Code Mala Tang
Jul 3, 2024 · Frontend Development

Master CSS Variables: Boost Flexibility, Reusability, and Theming

This article explains the fundamentals of CSS variables, how to define and use them—including default values, nesting, media queries, and JavaScript updates—while showcasing practical scenarios such as theming, responsive design, code reuse, and compatibility across browsers.

CSSThemingVariables
0 likes · 12 min read
Master CSS Variables: Boost Flexibility, Reusability, and Theming
php Courses
php Courses
May 7, 2024 · Backend Development

Using PHP’s is_bool() Function to Check Boolean Variables

This article explains how PHP’s built‑in is_bool() function determines whether a variable is a boolean, demonstrates its usage with four sample variables of different types, shows the resulting output, and highlights why only true and false values are recognized as booleans.

Code ExamplePHPVariables
0 likes · 4 min read
Using PHP’s is_bool() Function to Check Boolean Variables
php Courses
php Courses
Feb 21, 2024 · Backend Development

Using PHP’s is_null Function to Check for Null Variables

This article explains how the PHP built‑in function is_null can be used to determine whether a variable holds a null value, demonstrates its behavior with example code, and describes the resulting true or false outcomes for different variable types.

IS NULLPHPVariables
0 likes · 4 min read
Using PHP’s is_null Function to Check for Null Variables
php Courses
php Courses
Dec 18, 2023 · Backend Development

Understanding PHP Variables and Data Types

This article provides a comprehensive overview of PHP variables and its eight basic data types—including scalars, compound, and special types—explaining declaration rules, naming best practices, dynamic variables, strings, integers, floats, booleans, arrays, and objects to help beginners start programming with PHP.

ArraysData TypesObjects
0 likes · 15 min read
Understanding PHP Variables and Data Types
Liangxu Linux
Liangxu Linux
Dec 13, 2023 · Fundamentals

Why Pointers Matter: A Visual Journey from Memory Cells to C Code

This article walks through a visual memory model, introduces a simple mov instruction, expands it with size‑specific variants, explains variables and their types, and then builds up the concept of pointers, their arithmetic, and how they map to actual CPU instructions.

C languageMemory ModelVariables
0 likes · 18 min read
Why Pointers Matter: A Visual Journey from Memory Cells to C Code
Liangxu Linux
Liangxu Linux
Nov 20, 2023 · Fundamentals

How Memory, Variables, and Pointers Work from First Principles

This article explains how to read and write a tiny 8‑byte memory without any high‑level language or OS, introduces the concept of variables as named memory addresses, shows how pointers store addresses instead of copying data, and demonstrates indirect addressing and linked‑list structures.

AssemblyMemoryVariables
0 likes · 9 min read
How Memory, Variables, and Pointers Work from First Principles
php Courses
php Courses
Oct 27, 2023 · Backend Development

Using PHP extract() Function to Convert Array Keys to Variables

This article explains how PHP's extract() function converts array key‑value pairs into variables, covering its syntax, flag options, prefix usage, practical examples, and important safety considerations for developers, including behavior flags like EXTR_OVERWRITE, EXTR_SKIP, and how to avoid variable name conflicts.

ArrayExtractVariables
0 likes · 4 min read
Using PHP extract() Function to Convert Array Keys to Variables
Python Programming Learning Circle
Python Programming Learning Circle
Sep 1, 2023 · Fundamentals

Python Basics: Variables, Data Types, Control Flow, Functions, and Common Operations

This article provides a comprehensive introduction to Python fundamentals, covering language features, variable handling, data types such as numbers, strings, lists, tuples, dictionaries, as well as control structures, loops, functions, exception handling, file I/O, and time processing with practical code examples.

Control FlowData TypesVariables
0 likes · 15 min read
Python Basics: Variables, Data Types, Control Flow, Functions, and Common Operations
JD Tech
JD Tech
Aug 23, 2023 · Fundamentals

Go Language Basics: Syntax, Variables, Control Flow, OOP, Concurrency, and Error Handling

This article introduces Go to developers familiar with other object‑oriented languages, covering the language definition, basic syntax such as variable and constant declarations, control structures, functions with multiple returns and variadic parameters, data structures like arrays, slices and maps, struct‑based object‑orientation, interfaces, goroutine‑based concurrency, channels, mutexes, and the simple error‑handling model using error, defer, panic, and recover.

GoVariablesconcurrency
0 likes · 25 min read
Go Language Basics: Syntax, Variables, Control Flow, OOP, Concurrency, and Error Handling
Open Source Linux
Open Source Linux
Jun 1, 2023 · Fundamentals

Master Shell Scripting: From Basics to Real‑World Automation

This guide introduces shell scripting fundamentals, covering what a shell is, script creation, variables, environment variables, control structures, functions, arrays, and practical examples such as a hello‑world script, system backup, and server information collection, all illustrated with clear Bash code snippets.

BashShellVariables
0 likes · 24 min read
Master Shell Scripting: From Basics to Real‑World Automation
AI Cyberspace
AI Cyberspace
Mar 4, 2023 · Fundamentals

Master C Variables, Constants, and Scope: From #define to static

This article explains C variables and constants, their three components, key differences, how to define symbolic constants with #define, use the const keyword, understand various scopes, the static storage class, and the distinction between declarations and definitions, all illustrated with code examples.

ConstantsVariablesc++
0 likes · 12 min read
Master C Variables, Constants, and Scope: From #define to static
Liangxu Linux
Liangxu Linux
Feb 15, 2023 · Fundamentals

5 Common Bash Variable Mistakes and How to Avoid Them

This guide shares five practical tips to prevent frequent Bash variable errors—such as spacing around the equals sign, array syntax, quoting rules, command substitution, and naming conflicts with environment variables—helping developers write reliable shell scripts.

ArraysBashVariables
0 likes · 5 min read
5 Common Bash Variable Mistakes and How to Avoid Them
Liangxu Linux
Liangxu Linux
Feb 8, 2023 · Fundamentals

Unlocking Pointers: From Memory Cells to Real C Code

This article walks through the fundamentals of memory layout, type systems, variable definition, and pointer operations in C, illustrating how simple mov instructions map to variable storage, how pointers are declared and used, and why pointer arithmetic behaves the way it does.

C languageMemoryVariables
0 likes · 17 min read
Unlocking Pointers: From Memory Cells to Real C Code
Tencent Cloud Developer
Tencent Cloud Developer
Nov 3, 2022 · Operations

Grafana Tutorial: Building Monitoring Dashboards for Frontend Performance

This tutorial shows how the QQ Live frontend team integrated Tencent Cloud RUM and used Grafana to create a monitoring dashboard, covering data source setup, plugin installation, panel selection and configuration, advanced features like thresholds and variables, and in‑Grafana transformations for flexible frontend performance observability.

DashboardGrafanaPlugins
0 likes · 21 min read
Grafana Tutorial: Building Monitoring Dashboards for Frontend Performance
Liangxu Linux
Liangxu Linux
Sep 26, 2022 · Fundamentals

Master Bash Scripting: Variables, Loops, Functions, and More

This guide introduces Bash scripting fundamentals, covering variable declaration, printing with echo and printf, comments, user input, arrays, conditional statements, loops, functions, and tips for extending scripts with other languages, enabling readers to automate tasks on Unix-like systems.

LoopsShell scriptingVariables
0 likes · 8 min read
Master Bash Scripting: Variables, Loops, Functions, and More
Open Source Linux
Open Source Linux
Sep 20, 2022 · Backend Development

Master Postman: From Installation to Advanced API Testing Features

This comprehensive guide walks you through installing Postman, navigating its interface, sending your first request, and mastering essential and advanced features such as collections, batch execution, logging, assertions, variables, pre‑request scripts, request chaining, and extracting nested JSON values for effective API testing.

API testingCollectionHTTP
0 likes · 21 min read
Master Postman: From Installation to Advanced API Testing Features
WeDoctor Frontend Technology
WeDoctor Frontend Technology
Sep 14, 2022 · Fundamentals

Master Shell Scripting: From Basics to Advanced Debugging Techniques

This comprehensive guide walks you through shell scripting fundamentals—including process management, function libraries, variables, control structures, loops, debugging tools, and automation—while providing practical code examples, best‑practice tips, and visual illustrations to help both beginners and seasoned developers write robust Bash scripts.

BashLinuxScripting
0 likes · 43 min read
Master Shell Scripting: From Basics to Advanced Debugging Techniques
MaGe Linux Operations
MaGe Linux Operations
Jul 14, 2022 · Backend Development

Master Postman: From Installation to Advanced API Testing Features

This comprehensive guide walks you through Postman's installation, interface navigation, basic request types, response parsing, collection management, batch execution, logging, assertions, variables, pre‑request scripts, request chaining, and common value extraction, providing practical steps and code examples for effective API testing.

API testingCollectionsHTTP
0 likes · 23 min read
Master Postman: From Installation to Advanced API Testing Features
ITPUB
ITPUB
May 26, 2022 · Operations

Master Shell Scripting: From Basics to Advanced Techniques

This comprehensive guide introduces shell programming fundamentals, demonstrates how to write, execute, and manage scripts, explains variables, strings, parameters, arithmetic, control structures, functions, arrays, and file inclusion, and provides practical code examples for Linux environments.

ArraysBashControl Flow
0 likes · 23 min read
Master Shell Scripting: From Basics to Advanced Techniques
Model Perspective
Model Perspective
May 10, 2022 · Fundamentals

Master Python Basics: Data Types, Strings, and Arithmetic Explained

This article provides a concise introduction to Python's core features, covering its interpreted nature, object‑oriented support, dynamic typing, common data types such as strings, numbers, lists, tuples, dictionaries, sets, and booleans, as well as basic string manipulation and arithmetic operations with practical code examples.

ArithmeticData TypesStrings
0 likes · 7 min read
Master Python Basics: Data Types, Strings, and Arithmetic Explained
MaGe Linux Operations
MaGe Linux Operations
May 8, 2022 · Fundamentals

5 Common Bash Variable Mistakes and How to Avoid Them

Learn five practical tips to prevent common Bash variable errors—such as avoiding spaces around '=', correctly defining arrays, choosing proper quoting, using $(…) instead of backticks, and steering clear of reserved environment variable names—to write reliable Linux shell scripts.

LinuxVariablesprogramming tips
0 likes · 5 min read
5 Common Bash Variable Mistakes and How to Avoid Them
Liangxu Linux
Liangxu Linux
Mar 5, 2022 · Fundamentals

Master Bash Shell: Core Concepts, Commands, and Scripting Tricks

This guide explains why the command‑line interface is called a Shell, clarifies prompts and carriage returns, and walks through essential Bash features such as echo options, quoting rules, variable export, exec vs source, grouping, parameter expansion, arrays, arithmetic, redirection, conditional statements, loops, and control flow operators.

BashControl structuresLinux
0 likes · 12 min read
Master Bash Shell: Core Concepts, Commands, and Scripting Tricks
KooFE Frontend Team
KooFE Frontend Team
Jan 3, 2022 · Frontend Development

How to Write Defensive CSS: Prevent Scroll Chaining, Variable Fallbacks, and Layout Breakage

This article presents practical defensive CSS techniques—including using overscroll-behavior to stop scroll chaining, var() fallbacks for custom properties, min‑width/min‑height instead of fixed dimensions, proper background-repeat handling, and vertical media queries—to create more robust, responsive web layouts.

CSSResponsive DesignVariables
0 likes · 6 min read
How to Write Defensive CSS: Prevent Scroll Chaining, Variable Fallbacks, and Layout Breakage
macrozheng
macrozheng
Nov 4, 2021 · Fundamentals

Master Shell Scripting: From Basics to Advanced Control Structures

This tutorial walks Java developers through the fundamentals of Linux shell scripting, covering how to create and run scripts, check and set the default shell, manage permissions, define and manipulate variables, and implement flow‑control constructs such as if/else, case, for, and while loops with practical code examples.

BashControl FlowShell scripting
0 likes · 11 min read
Master Shell Scripting: From Basics to Advanced Control Structures
Programmer DD
Programmer DD
Oct 30, 2021 · Backend Development

Unlock Postman's Hidden Power: Automate API Tests Like a Pro

Learn how to transform Postman's often‑overlooked features into a powerful automated API testing workflow, covering result validation, batch collections, data‑driven testing, scheduled monitors, variable handling, request dependencies, and custom scripting to boost efficiency and reliability for developers.

CollectionsMonitorsPostman
0 likes · 15 min read
Unlock Postman's Hidden Power: Automate API Tests Like a Pro
WeDoctor Frontend Technology
WeDoctor Frontend Technology
Sep 15, 2021 · Fundamentals

Ace JavaScript Interviews: Master Variables, Types, Memory & Garbage Collection

This article provides a comprehensive JavaScript guide covering primitive and reference types, Symbol and BigInt nuances, type‑checking operators, stack vs heap memory, deep and shallow copying techniques, and practical garbage‑collection strategies to help developers ace interview questions.

Garbage CollectionInterview PreparationMemory Management
0 likes · 14 min read
Ace JavaScript Interviews: Master Variables, Types, Memory & Garbage Collection
FunTester
FunTester
Sep 12, 2021 · Operations

Master Postman: From GET to DELETE Requests and Variable Management

This guide walks through Postman's core features, covering GET, POST, PUT, and DELETE request testing, body options, custom headers, console usage, and the four variable types with their priority hierarchy, providing practical examples and official resource links.

API testingHTTP methodsPostman
0 likes · 6 min read
Master Postman: From GET to DELETE Requests and Variable Management
Open Source Linux
Open Source Linux
Sep 9, 2021 · Backend Development

Master Postman: From Installation to Advanced API Testing Techniques

This comprehensive guide walks you through installing Postman, navigating its interface, sending your first request, and mastering basic, convenient, and advanced features such as collections, batch runs, logging, assertions, variables, pre‑request scripts, and request chaining for efficient API testing.

API testingCollectionHTTP
0 likes · 22 min read
Master Postman: From Installation to Advanced API Testing Techniques
Python Programming Learning Circle
Python Programming Learning Circle
Jul 30, 2021 · Fundamentals

Understanding Basic Python Programming Concepts: Code, Conditionals, Loops, Variables, Functions, Modules, and Classes

This article introduces fundamental Python programming concepts by using everyday analogies, covering what code is, conditional statements, loops, variables, functions with parameters, modules, and classes, and provides clear example code snippets to illustrate each topic for beginners.

ConditionalsLoopsModules
0 likes · 15 min read
Understanding Basic Python Programming Concepts: Code, Conditionals, Loops, Variables, Functions, Modules, and Classes
Liangxu Linux
Liangxu Linux
Jul 22, 2021 · Fundamentals

Master Linux Shell: Variables, Strings, and Script Essentials

This guide explains how to use and name shell variables, manipulate strings, create and run Bash scripts, manage environment variables, perform arithmetic and relational operations, read user input, and handle common file‑system tasks, providing clear examples and command‑line snippets for each topic.

BashShell scriptingString Manipulation
0 likes · 21 min read
Master Linux Shell: Variables, Strings, and Script Essentials
php Courses
php Courses
Jun 29, 2021 · Backend Development

Analyzing PHP Core: Variables and Zend Engine Structures (Part 1)

This article introduces the PHP variable system by examining the Zend Engine's source code, covering variable naming rules, value types, reference and variable variables, file extensions in the PHP source tree, and a detailed walkthrough of the zend_types.h definitions, unions, structs, and memory‑alignment considerations.

BackendC languagePHP
0 likes · 32 min read
Analyzing PHP Core: Variables and Zend Engine Structures (Part 1)
ByteFE
ByteFE
Jun 24, 2021 · Fundamentals

Effective Variable and Function Naming Conventions in JavaScript

This article explains practical JavaScript naming conventions—covering camelCase, constant capitalization, acronym handling, meaningful and expressive names, verb consistency, boolean naming, and class naming—while providing numerous code examples to illustrate good and bad practices for clearer, maintainable code.

JavaScriptVariablescode readability
0 likes · 7 min read
Effective Variable and Function Naming Conventions in JavaScript
Python Programming Learning Circle
Python Programming Learning Circle
Apr 29, 2021 · Fundamentals

Python Basics: Variables, Control Flow, Data Structures, and Object‑Oriented Programming

This tutorial introduces Python fundamentals, covering why to learn the language, variable assignment, conditional statements, loops, lists, dictionaries, iteration techniques, and core object‑oriented concepts such as classes, getters/setters, encapsulation, and inheritance, all illustrated with clear code examples.

Control FlowData StructuresInheritance
0 likes · 20 min read
Python Basics: Variables, Control Flow, Data Structures, and Object‑Oriented Programming
php Courses
php Courses
Apr 25, 2021 · Backend Development

Using PHP extract() to Convert Array Elements into Variables

This article explains the PHP extract() function, its syntax, parameters, return value, and provides two practical code examples showing how to turn associative array entries into individual variables with optional prefix handling.

BackendExtractPHP
0 likes · 4 min read
Using PHP extract() to Convert Array Elements into Variables
php Courses
php Courses
Apr 25, 2021 · Backend Development

Using PHP list() to Assign Array Values to Variables

This article explains how PHP's list() function can assign values from an indexed array to multiple variables, compares it with extract(), and provides four code examples illustrating full assignment, skipping elements, selecting a single element, and the limitation with strings.

BackendListPHP
0 likes · 3 min read
Using PHP list() to Assign Array Values to Variables
php Courses
php Courses
Apr 13, 2021 · Backend Development

PHP Interview Questions and Answers: Functions, Variables, Sessions, Redis, and More

This article compiles essential PHP interview questions and answers covering output functions, string handling, error reporting, session vs cookie, GET vs POST, code execution results, URL encoding, character set conversion, array operations, Redis benefits, command‑line usage, crontab syntax, request flow, magic methods, and basic variable types.

BackendSessionVariables
0 likes · 10 min read
PHP Interview Questions and Answers: Functions, Variables, Sessions, Redis, and More
Programmer DD
Programmer DD
Apr 13, 2021 · Backend Development

Master Postman: Essential Features and Advanced Tips for API Testing

This comprehensive guide walks you through Postman's core capabilities—including installation, interface navigation, sending requests, handling query parameters, forms, JSON and file uploads, response analysis, collection management, batch execution, logging, assertions, variables, pre‑request scripts, and request chaining—empowering developers and testers to automate and streamline API testing workflows.

API testingCollection RunnerHTTP
0 likes · 25 min read
Master Postman: Essential Features and Advanced Tips for API Testing
Sohu Tech Products
Sohu Tech Products
Mar 31, 2021 · Operations

Shell Basics: Introduction, Commands, Variables, and Scripting

This article provides a comprehensive introduction to the Bash shell, covering its purpose, user prompts, shebang syntax, execution methods, basic commands like echo and printf, variable handling, environment variables, arithmetic operations, and conditional statements for writing effective shell scripts.

BashLinuxScripting
0 likes · 14 min read
Shell Basics: Introduction, Commands, Variables, and Scripting
php Courses
php Courses
Mar 31, 2021 · Backend Development

Understanding PHP isset() and empty() Functions

This article explains the purpose, syntax, return values, and usage nuances of PHP's isset() and empty() functions, provides code examples with expected output, and compares their behavior when checking variable existence and emptiness.

BackendVariablesempty
0 likes · 4 min read
Understanding PHP isset() and empty() Functions
Liangxu Linux
Liangxu Linux
Mar 25, 2021 · Fundamentals

Master Bash: Essential Shell Commands, Variables, and Scripting Basics

This guide introduces Bash shell fundamentals, covering script shebangs, execution methods, echo and printf usage, color output, variable handling, PATH manipulation, arithmetic operations, and conditional expressions, providing practical examples for Linux command‑line users.

BashShell scriptingVariables
0 likes · 10 min read
Master Bash: Essential Shell Commands, Variables, and Scripting Basics
MaGe Linux Operations
MaGe Linux Operations
Mar 24, 2021 · Fundamentals

Master Python Variables: Definitions, Naming Rules, and Best Practices

This article explains what variables are, why they’re essential in programming, how to define them in Python, the components of a variable, naming conventions, common pitfalls, and demonstrates both camelCase and snake_case styles with code examples, plus a brief note on constants.

PythonVariablesnaming conventions
0 likes · 5 min read
Master Python Variables: Definitions, Naming Rules, and Best Practices