🍎macOS Terminal⏱️ 12 min read•Updated October 2026

Homebrew & macOS Terminal Master Cheat Sheet: Commands, Casks & CLI Automation

Master Homebrew (brew) and modern macOS terminal command-line workflows on Apple Silicon and Intel: formula management, GUI cask automation, Brewfile bundles, background services, and hidden system defaults tweaks.

#homebrew#macos#terminal#cli#apple-silicon#zsh#bash#brew-bundle

1. Essential Homebrew Package Management (Formulae)

Homebrew is the de facto package manager for macOS. On Apple Silicon (M1/M2/M3/M4), Homebrew installs into /opt/homebrew, while on Intel Macs it installs into /usr/local. Use these core commands to manage CLI utilities, compilers, and libraries.

Command	Action / Explanation	Category
`brew update`	Fetch the newest version of Homebrew and all package formulae from GitHub repositories.	Maintenance
`brew install <formula>`	Download, compile, and install a command-line tool (e.g. `brew install git node python ffmpeg`).	Install
`brew upgrade`	Upgrade all installed outdated formulae and casks to their latest available versions.	Maintenance
`brew upgrade <formula>`	Upgrade a single specific package while leaving other packages unchanged.	Maintenance
`brew outdated`	List all installed packages and applications that have newer versions available.	Inspection
`brew list`	List all currently installed CLI packages and tools.	Inspection
`brew info <formula>`	Display package summary, dependencies, caveates, build options, and installation paths.	Inspection
`brew uninstall <formula>`	Uninstall and remove a package from your system.	Remove
`brew autoremove`	Automatically uninstall unused dependencies that were installed for packages you have deleted.	Cleanup
`brew cleanup`	Remove old download caches, lockfiles, and outdated versions to reclaim disk space.	Cleanup
`brew doctor`	Diagnose your macOS environment and Homebrew setup for configuration errors or unlinked files.	Diagnostics

2. Managing GUI Applications & Fonts with Homebrew Cask

Homebrew Cask extends brew to install full macOS graphical applications (like Google Chrome, Visual Studio Code, Docker, and VLC) directly into /Applications without opening Safari or dragging .dmg files.

Command	Action / Description	Category
`brew install --cask <app>`	Install a desktop GUI application (e.g. `brew install --cask visual-studio-code google-chrome docker`).	Install
`brew search --casks <query>`	Search the Homebrew database specifically for GUI applications matching a search keyword.	Search
`brew list --cask`	List all graphical desktop applications currently managed and installed via Cask.	Inspection
`brew info --cask <app>`	View developer information, homepage URL, bundle identifier, and quarantine requirements.	Inspection
`brew upgrade --cask`	Upgrade all installed GUI desktop applications to their latest published releases.	Maintenance
`brew uninstall --cask <app>`	Uninstall a GUI application and cleanly delete its bundle from `/Applications`.	Remove
`brew zap <app>`	Completely purge an application along with all its saved preferences, caches, and Application Support files.	Purge

3. Declarative Mac Environment Sync with Brewfile & brew bundle

The Brewfile allows you to define your entire macOS workstation setup (formulae, casks, App Store apps, and VS Code extensions) in a single plain text file. Perfect for version-controlling your dev setup in Git and bootstrapping a brand-new Mac in 5 minutes.

Export current environment to a Brewfile

brew bundle dump --describe --force

Generates a clean Brewfile in the current directory with descriptions for each package.

Install everything listed in a Brewfile

brew bundle --file=./Brewfile

Reads the Brewfile and installs any missing CLI tools, casks, and Mac App Store apps.

Verify your setup matches the Brewfile

brew bundle check

Verifies whether all dependencies declared in the Brewfile are installed and satisfied.

Uninstall packages NOT in the Brewfile

brew bundle cleanup --force

Removes any installed package or cask that is not explicitly declared in your Brewfile.

4. Managing Background Daemons via brew services

brew services integrates Homebrew with macOS launchd to manage background processes (like PostgreSQL, MySQL, Redis, Nginx, or Ollama) without writing custom LaunchAgent XML plists.

Command	Action / Function	Category
`brew services list`	Display all managed background services, their running status (started/stopped), and user privileges.	Inspection
`brew services start <service>`	Start a service immediately and register it to launch automatically upon user system login.	Control
`brew services run <service>`	Run a service immediately without registering it for automatic startup on system reboot.	Control
`brew services stop <service>`	Stop a running service and unregister it from automatic launchd boot execution.	Control
`brew services restart <service>`	Restart a service to reload its configuration files (e.g. `brew services restart redis`).	Control
`brew services cleanup`	Remove all unused or stale service definitions and orphaned launchd plists.	Maintenance

5. macOS Terminal & Zsh Productivity Essentials

Since macOS Catalina, zsh is the default shell. Here are crucial command-line shortcuts, Apple Silicon PATH setup, and system defaults tweaks every Mac developer should know.

Command / Snippet	Description / Purpose	Category
`eval "$(/opt/homebrew/bin/brew shellenv)"`	Add Homebrew to your PATH in ~/.zprofile on Apple Silicon (M1-M4) Macs.	Configuration
`dscacheutil -flushcache; sudo killall -HUP mDNSResponder`	Completely flush and reset local DNS cache on macOS Sonoma and Sequoia.	Networking
`defaults write com.apple.finder AppleShowAllFiles -bool true; killall Finder`	Force macOS Finder to show all hidden dotfiles (.env, .git, .zshrc) permanently.	Finder
`defaults write com.apple.dock autohide-delay -float 0; killall Dock`	Eliminate the annoying delay when hovering over an autohidden macOS Dock.	Performance
`lsof -i :<port>`	Identify which process or daemon is listening on a specific TCP network port (e.g. `lsof -i :3000`).	Diagnostics
`killall -9 <ProcessName>`	Force kill all running instances of a hung process by name (e.g. `killall -9 node`).	Processes
`caffeinate -d`	Prevent your Mac from sleeping while running long downloads, builds, or model executions.	Power