// Makes the camera follow this object by
// making it a child of this transform.

// Get the transform of the camera
var cameraTransform = Camera.main.transform;

// make it a child of the current object
cameraTransform.parent = transform;

// place it behind the current object
cameraTransform.localPosition = -Vector3.forward * 5;

// make it point towards the object
cameraTransform.LookAt(transform);

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
public Transform cameraTransform = Camera.main.transform;
void Awake() {
cameraTransform.parent = transform;
cameraTransform.localPosition = -Vector3.forward * 5;
cameraTransform.LookAt(transform);
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

public cameraTransform as Transform = Camera.main.transform

def Awake():
cameraTransform.parent = transform
cameraTransform.localPosition = ((-Vector3.forward) * 5)
cameraTransform.LookAt(transform)

// Detaches the transform from its parent.
transform.parent = null;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Awake() {
transform.parent = null;
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Awake():
transform.parent = null