Mac 下使用tree命令列目录


问题描述

相信很多使用过Linux的用户都用过tree命令,它可以像windows的文件管理器一样清楚明了的显示目录结构。不过有是有并不是系统本身就自带的,如果需要的话,Centos下可执行下列命令安装。

# yum install tree
[root@izbp12xhp8qv06m0aryf6jz web]# tree
.
├── admin.py
├── admin.pyc
├── apps.py
├── __init__.py
├── __init__.pyc
├── migrations
│   ├── 0001_initial.py
│   ├── 0001_initial.pyc
│   ├── 0002_auto_20180512_0757.py
│   ├── 0002_auto_20180512_0757.pyc
│   ├── 0003_group_user.py
│   ├── 0003_group_user.pyc
│   ├── 0004_args.py
│   ├── 0004_args.pyc
│   ├── 0005_assert.py
│   ├── 0005_assert.pyc
│   ├── 0006_auto_20180517_0457.py
│   ├── 0006_auto_20180517_0457.pyc
│   ├── __init__.py
│   └── __init__.pyc
├── models.py
├── models.pyc
├── __pycache__
│   └── __init__.cpython-36.pyc
├── tests.py
├── uploadpic.py
├── uploadpic.pyc
├── url.py
├── url.pyc
├── views.py
└── views.pyc

2 directories, 29 files

那么在 macOS 系统中如何使用 tree 呢?

知识背景

一般在Mac上配置环境变量时经常要创建、编辑 .bash_profile文件。 创建该文件时一般都会选择在当前用户目录下,即Mac下的.bash_profile 文件的路径是 /Users/YourMacUserName/.bash_profile (如果该文件已经创建过的话)。

1、创建 .bash_profile

(1) 启动终端

(2) 进入当前用户的home目录(默认就是)cd ~   或 cd /Users/YourMacUserName  

(3)输入touch .bash_profile

2、查看 、编辑 .bash_profile 文件

(1)终端输入 open -e .bash_profile 
(如果只是查看,直接使用open .bash_profile)

(2)编辑

(3)关闭即可保存修改

3、更新刚配置的环境变量

输入 source .bash_profile

解决方案

方案1

按照上述只是背景可以知道,我们增加一个脚本资源 tree 即可有 tree 命令了:

打开 .bash_profile 并在里面添加如下一行代码:

alias tree="find . -print | sed -e 's;[^/]*/;|____;g;s;____|; |;g'"

  保存退出后,更新刚配置的环境变量脚本资源,这是再在终端下试一下tree命令,看一看是不是成功了!!

soudu tree
.
|____.DS_Store
|____soudu
| |____.DS_Store
| |____spiders
| | |______init__.py
| | |______pycache__
| | | |____title.cpython-36.pyc
| | | |______init__.cpython-36.pyc
| | |____title.py
| |______init__.py
| |______pycache__
| | |____pipelines.cpython-36.pyc
| | |____items.cpython-36.pyc
| | |____settings.cpython-36.pyc
| | |______init__.cpython-36.pyc
| |____middlewares.py
| |____settings.py
| |____items.py
| |____pipelines.py
|____scrapy.cfg

上面指令的缺点也暴露出来了,我们无法指定遍历层级.所以决定安装 tree 工具

方案2

mac 下使用 brew包管理工具安装 tree

$ brew install tree

安装成功后,直接在终端使用, 使用 --help 查看帮助信息

$ tree --help
usage: tree [-acdfghilnpqrstuvxACDFJQNSUX] [-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>]
    [--sort[=]<name>] [--matchdirs] [--ignore-case] [--] [<directory list>]
  ------- Listing options -------
  -a            All files are listed.
  -d            List directories only.
  -l            Follow symbolic links like directories.
  -f            Print the full path prefix for each file.
  -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.
  --ignore-case Ignore case when pattern matching.
  --matchdirs   Include directory names in -P pattern matching.
  --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 '?'.
  -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.
  ------- Sorting options -------
  -v            Sort files alphanumerically by version.
  -t            Sort files by last modification time.
  -c            Sort files by last status change time.
  -U            Leave files unsorted.
  -r            Reverse the order of the sort.
  --dirsfirst   List directories before files (-U disables).
  --sort X      Select sort: name,version,size,mtime,ctime.
  ------- Graphics options ------
  -i            Don't print indentation lines.
  -A            Print ANSI lines graphic indentation lines.
  -S            Print with CP437 (console) graphics indentation lines.
  -n            Turn colorization off always (-C overrides).
  -C            Turn colorization on always.
  ------- XML/HTML/JSON options -------
  -X            Prints out an XML representation of the tree.
  -J            Prints out an JSON 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.
  --            Options processing terminator.


我们要在目录遍历时使用 -L 参数指定遍历层级


$ tree -L 1
.
├── _config.yml
├── db.json
├── gulpfile.js
├── node_modules
├── package-lock.json
├── package.json
├── public
├── scaffolds
├── source
├── static
└── themes

6 directories, 5 files

如果你想把一个目录的结构树导出到文件 Readme.md ,可以这样操作:

$ tree -L 3 > README.md

README.md文档我就不放出来了,tree 还有很多详细的用法可以看帮助文档!!!!