Directory Structure:
Bin: full binary, meaning binary. All binary files are stored in this directory, and the files can be run.
Dev: This directory mainly stores external devices, which cannot be used directly and need to be mounted (similar to allocating drive letters under Windows)
Etc: This directory mainly stores some configuration files
Home: means "home", which means the home directory of other users except the root user
Proc: The full name, process, represents the process, and the process in this directory is stored in the Linux runtime.
Root: root user home directory
Sbin: the full name of super binary, this directory also stores some binary files that can be executed, but only users with super privileges can execute them
Tmp: means "temporary", and the temporary files generated when the system is running will be stored in this directory
Usr: Stores the software installed by the user, similar to the program files under Windows
Var: The log file directory of the stored program/system
mnt: When an external device needs to be mounted, it needs to be mounted to the mnt directory.