CAN shield arduino

for a project we have to make a simple motor control with an arduino can shield.
Can someone help me, I can't find anything useful on the web.

I think you'll need to be more specific. I thought a CAN shield was used to read car engine data. What motor control do you want to do?

I typed "using arduino can shield" into Google and got lots of stuff talking about can shields and libraries for MCP2515 or MCP2551 chips. Is that not the stuff you are looking for?

we just have to test can_h, can_l, and see signals on an oscilloscope, I have no idea what the code is

If you just look at the signals on the oscilloscope where does the Arduino come in? You might have to give us a little more information as we don't know your project.