Command Line

Linux Commands Cheat Sheet

Essential Linux shell commands, file management, and system administration.

AWS CLI Cheat Sheet

AWS CLI commands for S3, EC2, Lambda, IAM, and other core services.

Terraform Cheat Sheet

Terraform HCL syntax, resource blocks, state management, and CLI commands.

Ruby Cheat Sheet

Ruby syntax, blocks, symbols, mixins, and enumerable methods for expressive, object-oriented scripting and web development.

PHP Cheat Sheet

PHP syntax, associative arrays, superglobals, and object-oriented features for server-side web development and dynamic scripting.

Perl Cheat Sheet

Perl syntax, regular expressions, arrays, hashes, and text-processing idioms for scripting and command-line pattern-matching tasks.

Lua Cheat Sheet

Lua syntax, tables, metatables, closures, and coroutines for lightweight embedded scripting and game engine development.

Bash Scripting Cheat Sheet

Practical Bash scripting reference covering variables, conditionals, loops, string/array handling, and common builtins.

PowerShell Scripting Cheat Sheet

Core PowerShell scripting reference covering variables, the object pipeline, control flow, functions, and common cmdlets.

Java Streams API Cheat Sheet

Covers creating streams, intermediate operations like filter and map, terminal operations and collectors, and safe use of parallel streams.

Java Maven Cheat Sheet

Covers a minimal pom.xml, the most common Maven CLI commands, dependency scopes, the default build lifecycle, and multi-module projects.

C++ CMake Cheat Sheet

Covers CMakeLists.txt basics, target-based library linking, common build-system variables, and the CLI workflow for configuring and building.

C# .NET Core Basics Cheat Sheet

Introduces ASP.NET Core and .NET fundamentals: Program.cs setup, dependency injection lifetimes, configuration, and the dotnet CLI workflow.

C# Entity Framework Cheat Sheet

Covers Entity Framework Core basics: DbContext, DbSet, CRUD operations, eager loading with Include, and managing schema migrations from the CLI.

Go Testing Cheat Sheet

Covers writing unit tests and table-driven tests with the testing package, subtests, benchmarks, and running tests with the go test CLI.

Ruby on Rails Basics Cheat Sheet

Covers the Rails CLI, MVC routing and controllers, ActiveRecord models, and core Rails naming conventions for building web apps.

Ruby Gems & Bundler Cheat Sheet

Covers RubyGems CLI commands, Gemfile syntax, Bundler workflows, and semantic version constraint operators for managing dependencies.

PHP Laravel Basics Cheat Sheet

Covers Artisan CLI commands, routing and controllers, Eloquent ORM models, and core Laravel concepts like Blade and middleware.

PHP Composer Cheat Sheet

Explains Composer CLI commands, composer.json structure, semantic version constraints, and PSR-4 autoloading for PHP dependency management.

Jupyter Notebook Cheat Sheet

Jupyter Notebook reference covering magic commands, shell integration, cell types, and essential keyboard shortcuts for efficient interactive computing.

MLflow Cheat Sheet

A reference for MLflow's experiment tracking, model registry, and CLI commands used to log, compare, and deploy machine learning models.

Airflow Cheat Sheet

A cheat sheet for Apache Airflow covering DAG authoring with the TaskFlow API, operators, task dependencies, and essential CLI commands.

Angular Cheat Sheet

A practical reference covering Angular CLI commands, standalone components, core decorators, and dependency injection for building single-page applications.

Ember.js Cheat Sheet

A reference for Ember's CLI commands, Glimmer components, tracked properties, and route/model conventions for building web apps.