The verbose optiojn will help you track exactly what dice are rolled and values calculated at each recursive level. jconk@last-ditch:~$ roll -v 1.5*\(4d6+4\)-10 Level 1 [array_roll]: Evaluating ...
From that point on you should be able to roll dice in your terminal by simply typing rd, roll, or rolldice followed by any number of dice (1d20,4d6,3d2) You can also add numbers with it (1d20,4) will ...