## Show dependency graph

```
brew deps --tree --installed
brew deps --tree --installed git
brew leaves | xargs brew deps --formula --for-each | sed "s/^.*:/$(tput setaf 4)&$(tput sgr0)/"
```

> From [here](https://gist.github.com/jamesmurdza/6e5f86bae7d3b3db4201a52045a5e477)

## Quick stats

Show Homebrew state:
```
brew info
```

Show manually installed taps, kegs and packages in one list:
```
brew bundle dump --file=-
```

## Manage packages and dependencies

### See installed packages

List installed packages:
```
brew list # formulae and casks
brew list --formulae # just formulae
brew list --casks # just casks
```

List installed packages which are **not** dependencies of any others:
```
brew leaves
brew leaves -r # installed manually
brew leaves -p # installed as dependencies
```

List installed packages which are **not** dependencies of manually installed packages:
```
brew autoremove --dry-run
```

### See dependency tree

Show dependencies of the wget formula in a tree format:
```
brew deps --tree wget
```

Show all installed formulae in a dependency tree format:
```
brew deps --tree --installed
brew deps --tree $(brew leaves) # remove duplicate showing of same dependency
```

Show dependency tree for all casks:
```
brew deps --tree $(brew list --casks -1)
```

### Remove hanging dependencies

Uninstall hanging (no longer used) dependencies:
```
brew autoremove 
```

### Remove all packages

Remove all packages installed with Homebrew:
```
brew remove --force $(brew list) --ignore-dependencies
brew remove --force $(brew list --formulae) --ignore-dependencies # formulae only
brew remove --force $(brew list --casks) --ignore-dependencies # casks only
```

## Manage files

### Installation paths

Show key installation directories:
```
brew shellenv
brew --prefix
brew --repository
brew --cellar
brew --caskroom
```

### See installed files

Show files in the wget keg:
```
brew list wget # collapse directories
brew list wget --verbose # recurse directories
```

Show symlinks to the wget keg:
```
unlink wget --dry-run
unlink wget --dry-run | xargs ls -l # show link destinations
```

Show unneeded files:
```
brew cleanup --dry-run # old versions of packages
brew cleanup -s --dry-run # old versions of packages and cache files
```

### Remove unneeded files

Remove old versions of packages and cache files:
```
brew cleanup -s
```

Completely erase the Homebrew cache folder:
```
rm -rf $(brew --cache)
```