4-File/directory access Rights Management

Access to a file or directory is divided into read-only, write-only, and executable three types.

The file owner, the same group contacts, and other users can access the file or directory.

Each file or directory access rights have three groups, each group with three-bit representation, respectively, the file is the master of the read, write, execute permissions, and the owner of the same group of users read, write and execute, other users of the system read, write and execute permissions.

When you use Ls-l to display the details of a file or directory, the leftmost column is the file's access rights.

Drwxrwxr-x 3 Xixi xixi 4096 April 08:56 test1
Drwxrwxr-x 2 Xixi xixi 4096 April 08:31 test2

4-File/directory access Rights Management