The issue is telling optparse that options are over:

rosparam set /longitude -- -97.728524

Not the most obvious solution, blame POSIX :)

 - Ken

On Tue, Apr 13, 2010 at 8:21 AM, Jack O'Quin <jack.oquin@gmail.com> wrote:
> Maybe I'm overlooking something obvious here, but this fails:
>
> $ rosparam set /longitude -97.728524
> Usage: rosparam set [options] parameter value
>
> rosparam: error: no such option: -9
>
> Is there some trick? Quoting does not help.
>
> I can rosparam load the value from a YAML file, but I still wonder how
> to do it from the command line.
> --
>  joq
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