Sharing Laptops wifi internet to Desktop via ethernet

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http://askubuntu.com – I'm running Ubuntu 13.10 on a Dell Inspiron 530s. It has a Linksys network adapter card, but I do not have the adapter, so my computer is connection-less. What I'd like to know is if there is a way to share the internet that my wireless laptop is receiving through an ethernet cord to give internet to my desktop computer. The laptop is a Compaq Presario CQ56, running Windows 8. Any answer is well appreciated. (HowTos)