The mkdir-command uses

mkdir: Command

1. Detailed command

"Feature description"

The mkdir command is a combination of the bold letters of each word in make directories, and its function is to create a directory, which, by default, prompts if the directory you are creating already exists, and does not continue to create the directory

"Syntax format"

　　

　　

mkdir	[option]	[Directory]
Mkdir	Options	Directory

"Option description"

Explanation of parameter options (with Δ emphasis)
-P
Recursively creates a directory that recursively means a subdirectory of the parent directory and its subdirectories Δ
Even if the directory implementation you want to create already exists, you will not be able to indicate that the directory already exists
-m set permissions for the default directory of the newly created directory
-V shows the process of creating a directory
2. Use case

1. Basic examples

Case 1, create a directory usage example without using any command parameters.

Let's start by looking at the current directory tree structure, with the following command:

[[Email protected] ~]# CD
[Email protected] ~]# tree-d
. #根据结果可以看出当前目录下没有任何目录

0 Directories

Start the test to create the directory and check:

[[email protected] ~]# mkdir data #在当前目录下创建data目录, where data is a relative path
[Email protected] ~]# tree-d
.
└──data #可以看到data目录已经创建.

1 directory
[Email protected] ~]# mkdir data #再次执行创建命令会提示目录已经存在.
mkdir: Unable to create directory "data": File already exists

Extended Knowledge:

The directory path style under Windows is d:\data\test, and the path style under Linux is/data/test, and their directory vertices and separators are different.

Case 2: Creating a directory recursively using the-p parameter

When we create a multilevel directory, if the first level directory (cc) does not exist, then we create the results will be error, resulting in the creation of results, the operation is as follows:
[Email protected] ~]# mkdir cc/test
Mkdir:cannot Create directory ' cc/test ': No such file or directory #提示没有这个文件或目录

At this point, you can specify the-p parameter to recursively create a multilevel directory:

The mkdir-command uses