npm 包很好用，但是占用空间太多了，npkill 提供了一个方便的工具，可以帮助我们查找安装的npm 包，以及进行清理
安装
npm install -g npkill简单使用
- 命令
npkill -d ~/mylearning/- 效果
帮助命令
NPKILL HELP -c, --bg-color Change row highlight color. Available colors are: blue, cyan, magenta, red, white and yellow. Default is blue. -d, --directory Set directory from which to start searching. By default, starting-point is . -D, --delete-all CURRENTLY DISABLED. Automatically delete all node_modules folders that are found. -e, --show-errors Show error messages if any. -E, --exclude Exclude directories from search (directory list must be inside double quotes "", each directory separated by "," ) Example: "ignore1, ignore2" -f, --full Start searching from the home of the user (example: "/home/user" in linux).