パス部分とファイル名を分離してcsvで吐き出すもの。
brew tap dart-lang/dart
brew install dart --with-content-shell
pub get
pub global activate --source git https://github.com/Tsuguya/dfcsv.git
echo 'export PATH="$PATH":"~/.pub-cache/bin"' >> ~/.bashrc
source ~/.bashrc
or just restart your shell