how to disable gpgcheck on command line with yum install?

[Patrick O'Callaghan]

On Wed, 2011-01-26 at 12:58 -0800, Dave Stevens wrote:
> Package libobasis3.3-en-US-base-3.3.0-6.x86_64.rpm is not signed
> [dave at davehost RPMS]$
> 
> I know how to disable gpg checking in a .repo file but don't know how
> to deal 
> with it here where there doesn't seem to be one. Ideas? F14 if it
> matters.

yum --nogpg install ...

poc