#!/bin/bash

# Roll
#   This script returns the values and sum of a set of dice rolls.  The first 
#   arg is optional and gives a number of dice.  The second arg is the number 
#   of sides on the dice.  For example "roll 2 6" will give two values from 1 
#   to 6 and also returns their sum.
#
# (c)2009 Dominic Lepiane 

sides=6
dice=1
total=0
c=0

if [ $# = 2 ] ; then
        dice=$1
        sides=$2
elif [ $# = 1 ] ; then
        sides=$1
else
        echo "Usage: $0 [# of dice] <# of sides>" >&2
        exit -1
fi

#echo "Rolling {$dice}d{$sides}"

while [ $c -lt $dice ] ; do
        c=$((c+1))
        roll=$((RANDOM%sides + 1))
        total=$((total+roll))
        echo -n "$roll "
done

if [ $dice -gt 1 ] ; then
        echo -n " = $total"
fi

echo ""