Learning about ASCII and Binary representations

binary.sh

#!/bin/bash

str="$*"

for ((i = 0; i < ${#str}; i++))
do
  char="${str:$i:1}"
  conv=$(LC_CTYPE=C printf '%d\n' "'$char")
  echo -n "$(echo "obase=2; ibase=10; $conv" | bc)"
done
echo -e "\n"