Set a combination of 9 bits permissions to prevent others to access your files.
Linux/Unix-like operating systems allow you to configure a combination of 9 bits permissions to restrict other users from unwanted files/directory access. Special permissions for executable files known as set UID, set GID, and sticky bits are similar to these.
To alter the access flags on existing files, use the chmod ("change mode") command. This can be expanding the quantity with the -R option. This can be triggered with either octal data that represents the permission flags, or with symbolic representations of the flags. The modes define which permits should be granted or deleted from the given classes.
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