Mac开发环境必装

$ sudo du -sh * /
$ cd /Users/yanerrol/Library/Containers/com.docker.docker

 $ tmutil listlocalsnapshots / #查看快照
 $ tmutil listlocalsnapshots /System/Volumes/Data #查看快照
 $ tmutil deletelocalsnapshots 2019-07-16-101514  # 删除快照2019-07-16-101514

$ cd /Users/yanerrol/Library/Application Support

$ find . -type f -size +100M
$ du -sh * | grep "^ *[0-9][0-9.]*M"

$ du -h | grep "^ *[0-9][0-9.]*G"