Script to change GUI text's displayed text value?

To find the GUIText object, you can also use GameObject.Find, like so:

 guiText = GameObject.Find("GUI_TEXT_NAME").guiText;

For effieciency, do this in the Start() function and save it to a private GUIText variable.

As of Unity 2.0, you can also use the GUI.Label function.

First put using UnityEngine.UI; then do the following and attach this script to UI TEXT Control.

      using UnityEngine;
   
      using UnityEngine.UI;

       using System.Collections;
 
      public class DisplayScore : MonoBehaviour {
 
  Text txt;
  private int currentscore=0;
 
  // Use this for initialization
  void Start () {
      txt = gameObject.GetComponent<Text>(); 
      txt.text="Score : " + currentscore;
  }
  
  // Update is called once per frame
  void Update () {
      txt.text="Score : " + currentscore;  
      currentscore = PlayerPrefs.GetInt("TOTALSCORE"); 
      PlayerPrefs.SetInt("SHOWSTARTSCORE",currentscore); 
  }

}

Like Elliot said:

guiText.text = "New Text";

You didn't tell us what language you use, but fortunately this line is the same in JS or C# (i guess you don't use Boo? right?) ;)

edit

To change the GUIText of another GameObject you can put a public variable at the top of your script and drag the desired GameObject/GUIText onto the variable in the inspector.

// JS var targetGuiText : GUIText;

Here what I used. I tried a few other methods that gave me some issues, this seems to work great with the yourText GUI Text Object dragged into the inspector:

 public class WhateverScript : MonoBehaviour {
 
     public GUIText yourText;
 
 void Update (){
 
     yourText.text = "Coins " + currentCoins + "/" + maxCoins;