aerender and EXR

Hello,

I am attempting to render .exr files via the command line using aerender -output /myPath/myFile.[#####].exr .

Unfortunately it keeps on rendering .movs.

Is there any way to specify the format in the command line arguments?

If the -OMtemplate is the only way. Is there a way to explicitly define a path to a saved template? I have many machines and would prefer keeping the template on 1 drive visible to all computers on my network.

Thank you,

Chris