How to change permissions just for [others] group

I have multiple subdirectories but I want to use '''chmod''' command but I want it to apply only for the [others] section. For example :

Europe : drwx-r--r--
Australia : drw-rx-r--

And I want to change only the Others section, and the other 2 to leave unchanged.

So it will end up :

Europe : drwx-r--rw-
Australia : drw-rx-rw-

Solution 1:

As well as chmod, you can also use setfacl to change permissions and add additional groups.

getfacl will show all permissions currently set to a file or directory

To change the permissions, you can use

setfacl -m o::rw- $path

This will modify the permission of others to include rw