Operation and Maintenance
Linux Operation and Maintenance
What is the execution directory linux command?
What is the execution directory linux command?
The Linux command to execute the directory is the cd command and the ls command. The cd command is the command to switch the directory, that is, switch the directory. The ls command is the most common directory operation command. Its main function is to display the directory. Content.
#The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.
What is the execution directory linux command?
Linux directory operation commands
1. ls command
ls is the most common directory operation command. The main function is to display the contents of the directory.
Command name: ls.
English original meaning: list.
The path is:/bin/ls.
Execution permission: all users.
Function description: Display the contents of the directory.
[root@centos07 ~]# ls [选项] [文件名或目录名]选项: -a: 显示所有文件 --color=when: 支持颜色输出，when 的值默认是alwavs(总显示颜色)，也可以是never(从不显示颜色)和auto(自动) -d: 显示目录信息，而不是目录下的文件 -h: 人性化显示，按照我们习惯的单位显示文件大小 -i: 显示文件的i节点号 -1: 长格式显示
2. cd command
cd is the command to switch the directory. The basic information of this command is as follows. ·
Command name: cd.
English original meaning: change directory.
Path: Shell built-in command.
Execution permission: all users.
Function description: Switch the directory.
2.1. Simplified usage of cd command
2.2. Relative directory and absolute directory
Absolute path: use the root directory as the reference , starting from the root directory and entering the directory level by level
Relative path: use the current directory as a reference to perform directory search
3. mkdir command
mkdir is the command to create a directory. Its basic information is as follows.
Command name: mkdir.
English original meaning: make directories.
The path is:/bin/mkdir.
Execution permission: all users.
Function description: Create an empty directory.
Command format:
[root@centos07 ~]# mkdir [选项] 文件名
Example:
[root@centos07 ~]# mkdir -p A/B/C -p //级联创建目录
4. rmdir command
Command name: rmdir.
English original meaning: remove empty directories.
The path is:/bin/rmdir.
Execution permission: all users.
Function description: Delete empty directories.
Command format:
[root@centos07 ~]# rmdir [选项] 目录名选项: -p : //递归删除目录
The rmdir command is very limited because it can only delete empty directories, so once there is content in the directory, an error will be reported.
This command is relatively "stupid", so we don't use it often. In the future, whether we delete files or directories, we will use the rm command.
Related recommendations: "Linux Video Tutorial"
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