How can I turn on File and Printer sharing, and the Firewall from the Windows command line

This command should take care of the File and Printer Sharing:

netsh advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes  

For the firewall:

netsh advfirewall set currentprofile state on  

I've tried them just now, and its seems to work for me.

For any additional information see Microsofts KB article: http://support.microsoft.com/kb/947709