The regular directory structure of the Linux system, no matter what version of directory you switch between

After we install the Linux system, the Linux system will also manually generate many files and directories like the Windows system. Such directories all contain different meanings. Next, let’s introduce what this kind of directory represents? And, in the command line interfaceWhat are the distribution versions of the Linux operating system, and how do we switch between different directories.

1. Linux system directory structure.

What we introduce here is the regular directory structure of the Linux system. No matter which version of the Linux system What are the distribution versions of the Linux operating system? Red Hat Linux usually includes the following directories.

bin: linux command directory (two's complement). sbin: Linux command directory (used by super administrators), s means SuperUser. boot: Linux startup directory, where the Linux kernel (boot, long/shirt) is stored. dev: Linux storage hardware directory, stored in a concrete file (device device). etc: Linux configuration file directory. lib: Linux system function library file directory, equivalent to the .dll file in window. mnt: Used for linux mounting. The initial version only has this mount. It is recommended to mount additional devices, such as U disks, mobile hard disks and partitions. medie: Used for linux mounting. The system recommends mounting media devices. misc: used for linux mounting. It is recommended to mount the shared directory of the NFS service. opt: Linux small software installation directory. sys: Linux virtual file system, which contains underlying hardware information and is stored in video memory. It mainly stores kernel-related information. tmp: Linux stores temporary files and will be manually deleted regularly. usr: Linux usually default installation directory of applications [unixsoftresource]. var: Linux dynamic data and process change storage location (such as logs, emails, cache, website). home: the home directory of the linux user, and the subdirectory is the folder name with the user name. root: Linux super administrator directory. proc: Linux virtual folder, which exists in the video memory and saves real-time information of the system, such as video memory, CPU and other hardware information.

In fact, different distribution versions may add more or less their own directories.

2. How to switch between directories?

The directory switching command in Linux is basically the same as the command under DOS in Windows system. If you have used DOS, it is not difficult to switch directories under the Linux system.

1. Switch to the current user’s home directory. We only need to enter the following command on the command line interface to switch to the current user's home directory:

cd

At this time, we can see in the command line interface that the current directory is the ~ location, and ~ represents the current user's home directory. As shown on the right:

2. Switch to the specified directory. The following command switches to the /home/ directory using an absolute path.

cd/home

If we are already in a directory, if we want to switch to the same level directory or the same level directory of the upper-level directory, we must use an absolute path. After the commands inside are switched, the current directory is changed to home. As shown on the right:

3. Switch to the previous directory. Switch to the previous directory, that is, switch to the directory before the current directory. The command is as follows:

cd-

Our current directory is home. After entering this command, we will switch back to the current user's home directory. As shown on the right:

4. Switch to the upper level directory. Switch with relative paths. The command is as follows:

cd..

One dot represents your own Linux video, and the two dots here represent the upper-level directory (parent directory). The copy results are as follows:

5. Switch to a subdirectory under the current directory. The following command switches to the gao directory in the current directory.

cdgao

If you want to switch to the home directory of another user, you must be an administrator. Ordinary users do not have this permission. The copy results of the commands inside are as shown on the right:

​6. Switch to the root directory. Sometimes, we enter a directory that is quite deep and has several levels. At this time, we can directly return to the Linux root directory through the following command

cd/

The / here represents the root directory of the Linux system, which is also the largest directory of the Linux system. All the directories introduced earlier are stored in this root directory.

Okay, we have systematically introduced the overall directory structure of the Linux system and how to switch between such directories. The operation is very simple, I believe you can easily get started.

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