Programming Tutorials and Coding Guides
Explore programming tutorials with practical examples across multiple languages, scripting, and development concepts for beginners and advanced users.
Welcome to the Programming tutorials section, where you will learn coding concepts with real-world examples across multiple languages and platforms.
This category includes beginner to advanced guides covering scripting, automation, and application development. Whether you are learning programming for system administration or building applications, these tutorials will help you gain practical experience.
Programming plays a crucial role in modern infrastructure and DevOps workflows. You can also explore related topics such as DevOps and Linux to understand how programming integrates with system-level operations.
What you will learn
- Core programming concepts and logic building
- Writing scripts for automation and system tasks
- Debugging and optimizing code
- Practical use cases in real environments
Who should read this
- Beginners starting with coding
- System administrators learning scripting
- Developers looking for practical examples
957 articles
Featured guides in this category
Hand-picked, most-cited tutorials — start here if you're new.
![HackerRank Solution: Martix Script [Python Regex]](/matrix-script-hackerrank-solution/python_matrix_script_hu_128db40108208303.webp)
HackerRank Solution: Martix Script [Python Regex]
In this tutorial we will cover multiple methods to solve matrix script from hackerrank solutions.
HackerRank Solution: Python Company Logo
company logo hackerrank solution python, company logo hackerrank solution python3, hackerrank solution for …
Python subprocess
Learn how to use Python subprocess to run shell commands, capture output, handle errors, use timeouts, pass …
How to Remove or Uninstall a Go Package (go get, Go Modules, Tools)
Learn how to remove or uninstall a Go package added with go get or go install. This guide explains how to …
HackerRank Solution: Python Alphabet Rangoli
In this tutorial we cover 3 methods to solve alphabet rangloi hackerrank solution in python3. Solution-1: …
![HackerRank Solution: Python Nested Lists [4 Methods]](/python-nested-list-hackerrank-solution/python_nested_lists_hu_3ed8216f6e7dce26.webp)
HackerRank Solution: Python Nested Lists [4 Methods]
In this tutorial we will cover 4 different methods to solve python nested list hackerrank solution using …
Golang store values in a struct using a for loop
Store slice values into structs with for range, golang iterate over struct fields with reflect, and a short golang forloop refresher—correct Go, no broken …
Golang return error: create, wrap, and check errors in Go
Golang return error and go return error: the error interface, errors.New and fmt.Errorf, if err checks, wrapping with %w, errors.Is and errors.As, and turning …
Golang math package: MaxInt32, MinInt64, Pi, and float64 APIs
Golang math package and pkg.go.dev math docs: math.MaxInt32 math.MinInt32 math.MaxInt64 math.MinInt64 constants, math.MaxInt math.MinInt, Pi and float64 …
Golang multiline string and reading multiple lines from stdin
Golang multiline string with raw backticks and escapes; golang read stdin and golang read line from stdin using fmt.Scan tokens, bufio.Reader ReadString, and …
Golang concatenate or merge two or more slices
We can use copy() and append() function to merge or concatenate two or more slices in Golang.
Golang remove backslash from string
Remove backslash from a string in Go with strings.ReplaceAll or strings.Replace, including raw literals and optional cleanup. Related: golang remove substring …
Golang escape backslash and escape string: raw literals vs "quoted"
Golang escape string and go escape string: golang escape backslash with doubled backslash in double-quoted strings, golang escape characters in interpreted …
Golang prompt for input: interactive CLI with bufio and fmt
Golang prompt for input and go interactive cli: read lines from stdin with bufio for a go prompt, yes/no prompts, Scanln loops, and validation with strconv; …
Update key with new value in JavaScript
We can either use foreach loop of maps function to update key with new value in Javascript
Error: cannot find module express
Error: Cannot find module 'express' This error is quite common and exists because when your code ran, the express package or module wasn’t found within its …
Node.js Child Process Tutorial [With Examples]
The exec() and spawn() methods are some of the frequently used Node.js child process module methods. Use the exec() method to run shell-like syntax commands on …
Node.js get all files in directory recursively
The simplest way to achieve a Node.js get all files in directory and subdirectories recursively is through the glob module.
Node.js loop through files in directory
Explore a comprehensive guide to reading files in a directory using Node.js. Discover how to use various methods such as fs.readdir(), fs.readdirSync(), …
Golang random bool and random boolean: math/rand and crypto/rand
Golang random bool and golang random boolean with math/rand Intn and Float64, golang rand local source for tests, random boolean generator patterns in Go, and …
Delete keys from a map in Go with delete()
Remove entries from a map in Go with the built-in delete(map, key); deleting a missing key is safe; use the comma-ok form first when you want to log or branch …