nmcli: Automatize connection to encrypted wireless networks

["saraguato gmail com" <saraguato gmail com>]

I have saw that nmcli don't have an option to pass the password/key to
create a wireless encrypted connection. I need to automatize the
connection to a encrypted wireless network. 2 years ago, i used
netm-cli ( http://dev.openbossa.org/mamona/gitweb?p=users/salveti/netm-cli.git;a=summary
 ) and with this script i automatized wireless connections passings
keys in ubuntu 7.10, but now with ubuntu 9.10 it is not working. Also
i have tried another client, cnetworkmanager, with the same result.

Is it possible to program this option? Could i add this option to the scritp?

Thank you for your time