The only command on the list (from 1996, not 1979) that still has no arguments is 'clear'. Back before clear, I used 'echo ^V<esc>c', but that's not portable t

The only command on the list (from 1996, not 1979) that still has no arguments is 'clear'. Back before clear, I used 'echo ^V<esc>c', but that's not portable to different termcap/curses/ncurses display devices.