Path.Combine(string, string)

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Description

Concatenates two path strings.

If path1 does not end with a valid separator character DirectorySeparatorChar is appended to path1 prior to the concatenation.

using System.IO;
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { Debug.Log(Path.Combine("/First/Path/To", "Some/File/At/foo.txt")); } }