In the Linux operating system, each file has attributes that define who can read, write, or execute the file. These attributes are called file permissions.
What access rights are for in Linux
Access rights in Linux are an important security mechanism to restrict access to files and directories to only those users who need to access them. This helps to protect sensitive information and prevent unauthorized access to the system and its files.
In Linux, as in any other multi-user system, different users have different access rights to files and directories. This means that each user can have their own files and directories to which only they have access, and can also be restricted from accessing files and directories that belong to other users.
Permissions can restrict what users can do with files and directories, such as prohibiting the deletion or modification of files to which the user does not have full access. This helps prevent accidental deletion or modification of important system files that could have unpredictable consequences for system performance.
Access rights in Linux are an important security mechanism that helps protect the system and its files from unauthorized access and prevents accidental user errors when working with files and directories.
Categorized access rights
Access rights in Linux are categorized into three types:
- file
owner groupOthers
Each file in Linux has a set of permissions that determines who can do what with the file. For example, the owner of a file can have read, write, and execute permissions on the file, a group can have read-only and execute-only permissions on the file, and other users can have read-only permissions on the file.
File permissions in Linux can be changed using the chmod command. With this command, you can set specific access rights for each type of user (owner, group, and other users).