euca-create-network-interface --version (return code: 0)
euca2ools 3.3-devel (Yokohama)
euca-create-network-interface --HELP (return code: 2)
usage: euca-create-network-interface [-d DESC] [-g GROUP]
[--private-ip-address ADDRESS]
[--secondary-address ADDRESS | --secondary-count COUNT]
[--show-empty-fields] [-U URL]
[--region USER@REGION] [-I KEY_ID]
[-S KEY] [--security-token TOKEN]
[--debug] [--debugger] [--version] [-h]
SUBNET
euca-create-network-interface: error: too few arguments