2001 eclipse how do you shut off the oil light?

The oil light is indicative of extremely low oil pressure.

First check the oil level, if the car has little to no oil in it, the light will come on.

Assuming the sensor is functioning correctly, and the car has oil in it, the oil light being in would indicate a clogged or broken oil pump which can not provide sufficient oil pressure.

Driving with very low oil or a malfunctioning oil pump will damage the internals of the engine in very short order and lead to expensive repairs. If the oil light is on and the oil level is where it should be, you shouldn't drive the car and should have it towed to a mechanic to be looked at.