list

• List all installed Formulae and Casks
• Formula: package definition built from upstream sources
• Cask: install macOS native applications

brew list
brew ls

brew list -l # long format
brew list -1 # one line per package

# List files of a given package
brew list "fish"
brew list "fish" -v # verbose expands the directories and show the nested files
brew list "fish" --versions

Brew catalog

• Creates a catalog of files per installed package

brew list --formula |
  while read formula; do
    brew list $formula |
      while read file; do
        echo -e "$formula\t$file"
      done
  done