Linux--Tree command

Tree--help   displaying files and folders in a tree-type structure  

Usage:tree [-acdfghilnpqrstuvxacdfqnsux] [-H basehref] [-t title] [-L level [-R]]
[-P pattern] [-I pattern] [-o filename] [--version] [--help] [--inodes]
[--device] [--noreport] [--nolinks] [--dirsfirst] [--charset charset]
[--filelimit[=]#] [- -SI] [--timefmt[=]<f>] [<directory list>]
 -------Listing options-------
 -a            all files are listed   &NBSP;&NBSP;&NBSP;&NBSP ;  # Show All Files
 -D            list directories only.   & nbsp; # Show only files, do not display files
 -l            follow symbolic links like di Rectories.
 -F            print the full path prefix for each file.

-X stay on current filesystem only. #confine the scope to the current file system, and if certain subdirectories under the specified directory reside on another file system, the subdirectory is excluded from the search scope.

-L level descend-directories deep. # show NLayer Directory
-R rerun tree when Max dir level reached.
-P pattern List only those files that match the pattern given. #Show only file or directory names that match "pattern"
-I pattern do not list files that match the given pattern. #do not display file or directory names that conform to the template styletree-i "*.C"
--noreport Turn off file/directory count at end of tree listing.
--charset x Use charset X for terminal/html and indentation line output.
--filelimit # do not descend dirs with more than # files in them.
--timefmt <f> Print and format time according to the format <f>.
-o filename Output to file instead of stdout.
--------File Options---------
-Q Print non-printable characters as '? '. #with "?" To list file and directory names by replacing control characters
-N Print non-printable characters as is. #directly lists file and directory names, including control characters
-Q Quote filenames with double quotes.
-P Print The protections for each file. #List permission marks
-U displays file owner or UID number. #Lists the owner name of the file or directory, and displays the user ID when there is no corresponding name

-G Displays file group owner or GID number #列出文件或目录的所属群组名称, the group ID is displayed when there is no corresponding name

-S Print the size in bytes of each file. #list file or directory size
-H Print the size in a more human readable the.
--si like-h, but use in SI units (powers of).
- D Print The date of last modification or (-c) status change. #list change times for files or directories
- F appends '/', ' = ', ' * ', ' @ ', ' | ' or ' > ' as per ls-f.
--inodes Print inode number of each file.
--device Print device ID number to which each file belongs.
  -------Sorting options-------
-v Sort files alphanumerically by version. #按字母数字排序
-R Sort files in reverse alphanumeric order. # Sort alphabetically by number
-T Sort files by last modification time. # files sorted by last modified time
-C Sort files by last status change time. # Sort by last modified state
-u Leave files unsorted. # Sort Sorting
--dirsfirst List directories before files (-u disables).
-------Graphics Options------
-i Don ' t print indentation lines. #do not list file or directory names in ladder form
-A Print ANSI lines graphic indentation lines. #use Asni drawing characters to display a tree view instead of a combination of ASCII characters
-S Print with ASCII graphics indentation lines.
- n Turn colorization off always (-C overrides). #Do not add color to the list of files and directories
-C Turn colorization on always. #add color to the list of files and catalogs to make it easy to differentiate between types
-------xml/html options-------
-X Prints out an XML representation of the tree.
-H basehref Prints out HTML format with BaseHref as top directory.
-T string Replace the default HTML title and H1 header with string.
--nolinks Turn off hyperlinks in HTML output.
----Miscellaneous Options----
--version Print version and exit.
--help Print Usage and this help message and exit.