tree --help
以树型结构显示文件及文件夹
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.
＃显示所有文件
-d
List directories only.
＃仅显示文件件，不显示文件
-l
Follow symbolic links like
directories.
-f
Print the full path prefix for each file.
-x Stay on current
filesystem only.
#将范围局限在现行的文件系统中，若指定目录下的某些子目录，其存放于另一个文件系统上，则将该子目录予以排除在寻找范围外。
-L level Descend only level directories
deep.
＃显示N层目录
-R Rerun tree when max dir level
reached.
-P pattern List only those files
that match the pattern
given. #只显示符合"pattern"的文件或目录名称
-I pattern Do not list files that match the given pattern.
#不显示符合范本样式的文件或目录名称 tree
-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 ‘?‘.
#用"?"号取代控制字符，列出文件和目录名称
-N
Print non-printable characters as is.
#直接列出文件和目录名称，包括控制字符
-Q
Quote filenames with double
quotes.
-p Print
the protections for each file. #列出权限标示
-u
Displays file owner or UID number.
#列出文件或目录的拥有者名称，没有对应的名称时，则显示用户识别码
-g Displays file group
owner or GID number #列出文件或目录的所属群组名称,没有对应的名称时则显示群组识别码
-s Print the size in
bytes of each file.
#列出文件或目录大小
-h Print the size in a more human
readable way.
--si Like
-h, but use in SI units (powers of 1000).
-D
Print the date of last modification or (-c)
status change.
#列出文件或目录的更改时间
-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. ＃按字母数字倒序排序
-t
Sort files by last modification time.
# 按最后修改时间排序的文件
-c
Sort files by last status change time.
# 按最近的修改状态排序
-U
Leave files unsorted.
＃分类整理排序
--dirsfirst List directories before files
(-U disables).
------- Graphics options
------
-i
Don‘t print indentation lines.
#不以阶梯状列出文件或目录名称
-A
Print ANSI lines graphic indentation lines.
#使用ASNI绘图字符显示树状图而非以ASCII字符组合
-S
Print with ASCII graphics indentation
lines.
-n Turn
colorization off always (-C overrides).
#不在文件和目录清单加上色彩
-C
Turn colorization on always.
#在文件和目录清单加上色彩，便于区分各种类型
------- 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.