用法：
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>]
选项：
| 参数 | 功能 |
|---|---|
| -a | 显示所有文件和目录。 |
| -d | 显示目录名称而非内容。 |
| -l | Follow symbolic links like directories. |
| -f | 在每个文件或目录之前，显示完整的相对路径名称。 |
| -x | Stay on current filesystem only. |
| -L level | Descend only level directories deep. |
| -R | Rerun tree when max dir level reached. |
| -P pattern | List only those files that match the pattern given. |
| -I pattern | Do not list files that match the given pattern. |
| --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
| 参数 | 功能 |
|---|---|
| -q | Print non-printable characters as '?'. |
| -N | Print non-printable characters as is. |
| -Q | Quote filenames with double quotes. |
| -p | Print the protections for each file. |
| -u | Displays file owner or UID number. |
| -g | Displays file group owner or GID number. |
| -s | Print the size in bytes of each file. |
| -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. |
| -F | Appends '/', '=', '*', '@', '|' or '>' as per ls -F. |
| --inodes | Print inode number of each file. |
| --device | Print device ID number to which each file belongs. |
排序功能
| 参数 | 功能 |
|---|---|
| -v | Sort files alphanumerically by version. |
| -r | Sort files in reverse alphanumeric order. |
| -t | Sort files by last modification time. |
| -c | Sort files by last status change time. |
| -U | Leave files unsorted. |
| --dirsfirst | List directories before files (-U disables). |
显示功能
| 参数 | 功能 |
|---|---|
| -i | Don't print indentation lines. |
| -A | 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). |
| -C | 在文件和目录清单加上色彩，便于区分各种类型。 |
XML/HTML options
| 参数 | 功能 |
|---|---|
| -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. |
其它功能
| 参数 | 功能 |
|---|---|
| --version | Print version and exit. |
| --help | Print usage and this help message and exit. |
