Here are some cheatsheets for quick reference.
Essential Apache commands and configuration for web servers
Essential commands for Arch Linux, Pacman, AUR (Yay/Paru), and Flatpak
Essential AWS CLI commands for cloud management
Essential Bash scripting syntax and commands
Essential commands for Windows Command Prompt administration and scripting
Essential curl commands for HTTP requests and API testing
Essential Docker commands for container management
Essential commands for Ethereum development using Geth, web3.js, and Hardhat
Essential Git commands for version control
Essential grep and find commands for searching
Essential commands for Hexo static blog framework
Essential commands for Hugo static site generator
Essential IPTables commands for firewall management
Essential commands for Jekyll static site generator
Essential kubectl commands for Kubernetes cluster management
Essential commands for Generic LDAP, FreeIPA, Samba AD DC, and OpenLDAP
Essential commands for Linux server administration, monitoring, and security
Complete guide to Markdown formatting and syntax
Essential MongoDB commands for database operations
Essential MySQL and MariaDB commands for database management
Essential commands for NEAR Protocol development and operations
Essential Nginx commands and configuration for web servers
Essential CLI commands for Node.js, NPM, NVM, PM2, Yarn, Deno, and Bun
Essential PostgreSQL commands for database management
Essential PowerShell commands and scripting syntax
Essential Python syntax and commands
Essential Redis commands for caching and data structures
Essential sed and awk commands for text processing
Essential commands for Solana blockchain development and operations
Essential SSH commands and configuration
Essential OpenSSL commands for SSL/TLS certificates
Essential systemd commands for service management
Essential commands for Termux environment on Android
Essential Terraform commands for infrastructure as code
Essential tmux commands and shortcuts for terminal multiplexing
Essential Vim commands and shortcuts for text editing
Essential commands for Winget and Chocolatey
Essential commands for managing Windows Subsystem for Linux (WSL)
Common commands for archiving and compressing files using zip and tar