How can I chmod 777 all subfolders of var?

chmod 777 `chmod 777 `777 1. `chmod`Linux777. 777 means the file directory is granted read, write and execute permissions for all three user classes, including the owner, group members, and others.

jnt777 link alternatif, I'm trying to change the permissions of temp_dir to 777. Why are these commands not accomplishing that? I'm using Linux by the way..