Bash script to roll dices for D&D character sheet creation

rolldice.sh

#!/bin/bash

ATRIBUTOS=()

function remove_min {
  local total=0
  local dices=()

  IFS=$'\n'
  DICES=($(sort <<<"${ROLL[*]}"))
  unset IFS

  dices=${DICES[@]:1}
  total=$(IFS='+';bc<<<"${DICES[*]:1}")

  echo Dados: ${dices} = ${total}
  ATRIBUTOS+=($total)
}

function dice_roll {
  for i in $(seq 4);
  do
    ROLL[i]=$((${RANDOM}%6 +1))
  done

  echo ''
  echo Rolagem: ${ROLL[@]}
}

echo ''
echo '### ROLAGENS ###'
for i in $(seq 6); do
  dice_roll
  remove_min
done
echo '#################'

echo ''
echo '### ATRIBUTOS ###'
echo $(IFS=$'\n'; sort <<<"${ATRIBUTOS[*]}")
echo '#################'