Linux Basics Command (4) mkdir command

The Linux mkdir command is used to create a directory of the specified name, requiring the user who created the directory to have write permission in the current directory, and the specified directory name cannot be a directory already in the current directory.

1. Command format:

mkdir [Options] directory ...

2. Command function:

The mkdir command enables you to create a folder or directory named DirName (the specified file name) at the specified location. The user who is creating a folder or directory must have write permissions to the parent folder of the folder that you are creating. Also, the folder (directory) You create cannot have the same name as the file name in its parent directory (that is, the parent folder), that is, the same directory cannot have the same names (case-sensitive).

3. Command parameters:

-M,--mode= mode, set permissions < mode > (similar to chmod) rather than rwxrwxrwx minus umask

-P,--parents can be a path name. At this point if some directories in the path do not already exist, plus this option, the system will automatically establish those directories that do not exist, that is, can build multiple directories;

-V,--verbose displays information each time a new directory is created

--HELP displays this help information and exits

--version output version information and exit

4. Command instance:

Instance 1: Create an empty directory

Command

mkdir test1

Output:

[Root@localhost soft]# CD test

[Root@localhost test]# mkdir test1

[Root@localhost test]# LL

Total 4drwxr-xr-x 2 root root 4096 10-25 17:42 test1

[Root@localhost test]#

Instance 2: Multiple directories created recursively

Command:

Mkdir-p test2/test22

Output:

[Root@localhost test]# mkdir-p test2/test22

[Root@localhost test]# LL

Total 8drwxr-xr-x 2 root root 4096 10-25 17:42 test1

Drwxr-xr-x 3 root root 4096 10-25 17:44 test2

[Root@localhost test]# CD test2/

[Root@localhost test2]# LL

Total 4drwxr-xr-x 2 root root 4096 10-25 17:44 test22

[Root@localhost test2]#

Instance 3: Create a directory with a permission of 777

Command:

Mkdir-m 777 Test3

Output:

[Root@localhost test]# mkdir-m 777 Test3

[Root@localhost test]# LL

Total 12drwxr-xr-x 2 root root 4096 10-25 17:42 test1

Drwxr-xr-x 3 root root 4096 10-25 17:44 test2

DRWXRWXRWX 2 root root 4096 10-25 17:46 test3

[Root@localhost test]#

Description

TEST3 permissions are rwxrwxrwx

Example 4: Creating a new directory displays information

Command:

Mkdir-v test4

Output:

[Root@localhost test]# mkdir-v test4

mkdir: Directory "test4" created

[Root@localhost test]# MKDIR-VP test5/test5-1

mkdir: Directory "TEST5" created

mkdir: Directory "test5/test5-1" created

[Root@localhost test]#