how to use any controller button with unity code example

Example: unity controller input

float moveSpeed = 10;
//Define the speed at which the object moves.

float horizontalInput = Input.GetAxis("Horizontal");
//Get the value of the Horizontal input axis.

float verticalInput = Input.GetAxis("Vertical");
//Get the value of the Vertical input axis.

transform.Translate(new Vector3(horizontalInput, 0, verticalInput) * moveSpeed * Time.deltaTime);
//Move the object to XYZ coordinates defined as horizontalInput, 0, and verticalInput respectively.