I just discovered ECHOX (and that it has been around since v15). It's help says
That sounds really good since I'm likely not to know if text from a file (or CLIP:, or CON:) may have embedded special characters. But how do I use it. Getting at such text requires referencing a variable or variable function, and those are not expanded.
anything more than
ECHOX is useful for text output when you want to display some text that may have embedded special characters (like %, <. >, or |).