#!/bin/bash
string=$(cat $1 | sed -z 's/\s\s/ /g' | sed 's/[ ][ ]*/ /g')
allowed="aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZåÅäÄöÖ"

test_char() {
  is_allowed=0
  if [[ $1 == [$allowed] ]]; then
    is_allowed=1
  fi
  echo $is_allowed
}

letter_count=0
word_count=1

for (( i=0; i<${#string}; i++ )); do
  if [[ ${string:$i:1} == " " ]]; then
    word_count=$((word_count+1))
  else
    was_allowed=$(test_char ${string:$i:1})
    letter_count=$(($letter_count+$was_allowed))
  fi
done

if [ $letter_count -gt 0 ]; then
  echo Sanoja: $word_count
  echo Kirjaimia: $letter_count
fi
exit 0