Linux File Type

Linux file type-general Linux technology-Linux technology and application information. For details, refer to the following section. 1. Common files
Text file, which consists of ASCII characters.
Data file, which consists of numeric and text data from the application.
An executable binary program that consists of machine commands and data.

2. Directory files
Is a list composed of paired "I node number/file name"
The I node number is the subscript used to retrieve the I node table. The I node contains the File status information.
A file name is a text string assigned to a file to identify the file.
"Point" (.) indicates the directory itself; "point" (.) indicates the parent directory of the directory.

3. Device Files
In Linux, all devices are treated as special files. users operate on devices as normal files to achieve device independence.
Character device Block

4. Symbolic Link file

Concept of Linux File System

Organize files and directories into a single inverted Tree Structure
The file system starts from the root directory and represents a separate '/' (diagonal line) character.
Name is case sensitive
The path is separated '/'.
The file name consists of the file name and extension.
The file name starting with a dot (.) is an implicit file.