Post #2948114

Personally, I feel that if it uses control characters to update the screen in previous positions, altering the scroll buffer, moving beyond where the cursor is and redrawing the screen, then it's a TUI. CLI programs only output plain text in a stream, using just control characters for coloring and formatting, and if they do any re-drawing it's only for the current line (eg. progressbars and so). So.. even something like `less` is a TUI program.. but things like `more` or `sed` would be CLI programs.