OpenInFileBrowser.cs

// from http://wiki.unity3d.com/index.php/OpenInFileBrowser


public static class OpenInFileBrowser {
	public static bool IsInMacOS {
		get {
			return UnityEngine.SystemInfo.operatingSystem.IndexOf("Mac OS") != -1;
		}
	}

	public static bool IsInWinOS {
		get {
			return UnityEngine.SystemInfo.operatingSystem.IndexOf("Windows") != -1;
		}
	}

	public static void OpenInMac(string path) {
		bool openInsidesOfFolder = false;

		// try mac
		string macPath = path.Replace("\\", "/"); // mac finder doesn't like backward slashes

		if (System.IO.Directory.Exists(macPath)) { // if path requested is a folder, automatically open insides of that folder
			openInsidesOfFolder = true;
		}

		if (!macPath.StartsWith("\"")) {
			macPath = "\"" + macPath;
		}

		if (!macPath.EndsWith("\"")) {
			macPath = macPath + "\"";
		}

		string arguments = (openInsidesOfFolder? "" : "-R ") + macPath;

		try {
			System.Diagnostics.Process.Start("open", arguments);
		} catch (System.ComponentModel.Win32Exception e) {
			// tried to open mac finder in windows
			// just silently skip error
			// we currently have no platform define for the current OS we are in, so we resort to this
			e.HelpLink = ""; // do anything with this variable to silence warning about not using it
		}
	}

	public static void OpenInWin(string path) {
		bool openInsidesOfFolder = false;

		// try windows
		string winPath = path.Replace("/", "\\"); // windows explorer doesn't like forward slashes

		if (System.IO.Directory.Exists(winPath)) { // if path requested is a folder, automatically open insides of that folder
			openInsidesOfFolder = true;
		}

		try {
			System.Diagnostics.Process.Start("explorer.exe", (openInsidesOfFolder? "/root," : "/select,") + winPath);
		} catch (System.ComponentModel.Win32Exception e) {
			// tried to open win explorer in mac
			// just silently skip error
			// we currently have no platform define for the current OS we are in, so we resort to this
			e.HelpLink = ""; // do anything with this variable to silence warning about not using it
		}
	}

	public static void Open(string path) {
		if (IsInWinOS) {
			OpenInWin(path);
		} else if (IsInMacOS) {
			OpenInMac(path);
		} else { // couldn't determine OS
			OpenInWin(path);
			OpenInMac(path);
		}
	}
}