# cmatrix > Shows a scrolling Matrix like screen in the terminal. > See also: `cbonsai`, `asciiquarium`, `pipes.sh`. > More information: . - Enable [a]synchronous scrolling: `cmatrix -a` - Change the text [C]olor (green by default): `cmatrix -C {{red}}` - Enable [r]ainbow mode: `cmatrix -r` - Use a screen [u]pdate delay of 100 centiseconds (1 second): `cmatrix -u 100` - Use [s]creensaver mode where the first keystroke exits: `cmatrix -s`