# Homebrew

### Command

```bash
# Print export statements. When run in a shell, this installation of Homebrew will
# be added to your PATH, MANPATH, and INFOPATH.
brew shellenv

# Show Homebrew and system configuration info useful for debugging. If you file a
# bug report, you will be required to provide this information.
brew config
```

#### Brew Help

```bash
# Display the version of Homebrew.
$ brew --version
# Print Help Information
$ brew help
# Print Help Info for a brew command
$ brew help <sub-command>
# Check the system for potential problems.
$ brew doctor
```

#### Brew Update

```bash
# Fetch latest version of homebrew and formula
$ brew update
# Show formulae with an updated version available
$ brew outdated
# Upgrade all outdated and unpinned brews
$ brew upgrade
# Upgrade only the specified brew
$ brew upgrade <formula>
# Prevent the specified formulae from being upgraded
$ brew pin <formula>
# Allow the specified formulae to be upgraded.
$ brew unpin <formula>
```

#### Brew Repositories

```bash
# List all the current tapped repositories (taps)
$ brew tap
# Tap a formula repository from Github using https for tap https://github.com/user/homebrew-repo
$ brew tap <user/repo>
# Tap a formula repository from the specified URL
$ brew tap <user/repo> <URL>
# Remove the given tap from the repository
$ brew untap <user/repo>
```

#### Brew Cask

```bash
# Tap the Cask repository from Github.
$ brew tap homebrew/cask
# List all the installed casks .
$ brew cask list
# Search all known casks based on the substring text.
$ brew search <text>
# Install the given cask.
$ brew cask install <cask>
# Reinstalls the given Cask
$ brew cask reinstall <cask>
# Uninstall the given cask.
$ brew cask uninstall <cask>
```

#### Brew Search, Install, Remove

```bash
# List all the installed formulae.
$ brew list
# Display all locally available formulae for brewing.
$ brew search
# Perform a substring search of formulae names for brewing.
$ brew search <text>
# Display information about the formula.
$ brew info <formula>
# Install the formula.
$ brew install <formula>
# Uninstall the formula.
$ brew uninstall <formula>
```

#### Brew Cleanup

```bash
# Remove older versions of installed formulae.
$ brew cleanup
# Remove older versions of specified formula.
$ brew cleanup <formula>
# Display all formula that will be removed (dry run)
$ brew cleanup -n
```