Follow abstruct poroperty.

PropertyFollow.cs

using UnityEngine;
using System;
using System.Reflection;

public class PropertyFollow : MonoBehaviour {
	[Serializable]
	public class TargetProp {
		public string compName;
		public string propName;
	}

	public GameObject target;
	public TargetProp prop;

	PropertyInfo propInfo;
	Component targetComp;
	Component myComp;

	void Start () {
		// Check component
		targetComp = target.GetComponent (prop.compName);
		myComp = this.GetComponent (prop.compName);
		if(targetComp == null || myComp == null) {
			Debug.LogWarning("No target component");
			this.enabled = false;
			return;
		}
		// Cache property
		Type type = myComp.GetType ();
		propInfo = type.GetProperty (prop.propName);
		if(propInfo == null) {
			Debug.LogWarning("No target property");
			this.enabled = false;
			return;
		}
	}

	void Update () {
		propInfo.SetValue (myComp, propInfo.GetValue (targetComp, null), null);
	}
}