How do i give permissions to all subfolders of a folder ?

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http://askubuntu.com – I am using Ubuntu. Though I have given permission to my htdocs for access and delete. But I want it to be done for any folder that is either copied or placed in htdocs. I don't want to set permission each time for every folder that is copied to Htdocs. I want it for all folders of htdocs if they are copied after setting permission. (HowTos)