FileUtil.MoveFileOrDirectory  

static function MoveFileOrDirectory (from : String, to : String) : void

Description

Moves a file or a directory from a given path to another path.

This function's path is relative to the project root folder but it can also accept absolute paths.

All file separators should be forward ones "/".

Make sure to include the name of the files or directories at the end of the "to" argument

// creates a menu entry to move a file or a directory.
@MenuItem ("Example/Move Something")
static function MoveAFile () {
    // moves the file "YourFileOrFolder" from "path/" to "move/path/"
    FileUtil.CopyFileOrDirectory("path/YourFileOrFolder", "move/path/YourFileOrFolder");
}