Raspberry Pi_Eng_13.1.3 Framework for Owner User and Owner Group of File

13.1.3 Framework for Owner User and Owner Group of File

In Linux, users are grouped and managed according to certain criteria to grant or deny privileges to specific user account or user group of. When classifying the types of users who can be granted authority to files, there are three types as follows:

Raspberry Pi_Eng_13.1.2 Confirming Permission Information on Window Screen

13.1.2 Confirming Permission Information on Window Screen

To confirm the details of a specific file on window screen, click right mouse buttpn on the desired file or directory, and then a pop-up screen will appear as shown in the figure below. Click the [Properties] menu there.

Raspberry Pi_Eng_13.1.1 Confirming Permission Information on File

13.1 Understanding Scheme of File Permissions

13.1.1 Confirming Permission Information on File

If you confirm file information on Linux system, you can determine permissions for that file.

Below is the contents of a directory called “testdata” that you have seen with the [File Manager] program on the window screen. You can see that the directory contains a file and another directory.

Raspberry Pi_Eng_13.0 Chapter 13 Control of File Permission

Chapter 13 Control of File Permission

Chapter’s Main Topics

This chapter describes the basic concepts of how a permissions scheme for a file works on a Linux system, and also describes how to change ownership and execution permissions for a file.

It includes descriptions on the following topics:
■ Scheme of file permission

■ Changing the ownership of a file

■ Change execution permission on a file