Function Reference
— Built-in Function: mfilename ()
— Built-in Function: mfilename ("fullpath")
— Built-in Function: mfilename ("fullpathext")

Return the name of the currently executing file. At the top-level, return the empty string. Given the argument "fullpath", include the directory part of the file name, but not the extension. Given the argument "fullpathext", include the directory part of the file name and the extension.