You can set permission for the folder or file in Linux system by using command chmod.
For instance to setup the /test folder permission to 777 you need to type: chmod 777 /test.
To check that 777 is really set use stat command: stat /test
You can clearly see that folder is set to 777 permission.
To process bundle action with folders and sub folders use the following example: chmod –R /test. This will setup all folders, files and subfolders to 777.
However there might be another way to do it either for folders&subfolders: find /test/ -type d -exec chmod 777 {} \;
or for the all files in all folders and subfolders: find /var/www -type f -exec chmod 777 {} \;
Be very careful with permission 777, this is shown only for example purposes.