Changes

'''NOTE:''' In this course, we CANNOT create groups or assign users to groups in the '''Matrix''' server. Instead, you may learn how to those tasks when or if you take a Unix/Linux administration course. On the other hand, you can change which '''user''', '''same group members''' or '''other group members''' can access or NOT access a directory or regular file.<br><br>

File Permissions consist of '''two-layers''':<br><br>'''First''', the permissions of a '''directory''' that contains regular files, and '''second''', permissions of the ''subdirectories and/or regular files'' within that directory.

A symbol ''dash'' "'''-'''" indicates that the permission has '''NOT''' been granted.

The permissions of '''newly-created''' directories and regular files are automatically assigned<br>via a '''user mask''' (we will discuss this shortly). In order to change permissions for directories and regular files, you would use the '''chmod''' command.