我在文件中有以下几行：
Modified folders: html/project1/old/dev/vendor/symfony/yaml/Tests/bla.yml
Modified folders: html/port5/.DS_Store
Modified folders: html/trap/dev8/.DS_Store
Modified folders: html/bla3/test/appl/.DS_Store
Modified folders: html/bla4/pro1/app/bla/Api2.php
Modified folders: html/bla10/dev/appl/language/.DS_Store
Modified folders: html/bla11/dev/appl/language/abc.txt
这基本上是rsync. 我想列出文件的所有行，最多 3 个目录位置，例如
Modified folders: html/project1/old
Modified folders: html/port5
Modified folders: html/trap/dev8
Modified folders: html/bla3/test
Modified folders: html/bla4/pro1
Modified folders: html/bla10/dev
Modified folders: html/bla11/dev
任何人都可以向我提供任何命令或 shell 脚本来做同样的事情吗？