"Column directory" of Shell programming learning

for a list of the current path under the directory (not the list of directories) method, and share with you ~ ~

1. Using ls-d with wildcard characters
ls-d * * 

2, ls-f with grep query with/end of the content
-F: Displays the directory behind the/
ls-f | grep "/$"

3, ls-l with grep query to start with D content
ls-l | grep "^d"

4, find, here to use a parameter:-maxdepth (maximum number of directories)
find.-maxdepth 1-type D

-maxdepth 1: Indicates that only the first level directory is listed
-maxdepth 2: List the directories to the second tier, and so on

There is also an interesting parameter:-mindepth(minimum number of directories)
in other words,-mindepth 5 represents only a list of more than 5 stories.

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"Column directory" of Shell programming learning