read
pass=$(cat)

erg=0
grep -q '[0-9]'          <<<"$pass" || erg=1
grep -q '[[:lower:]]'    <<<"$pass" || : $(( erg++ ))
grep -q '[[:upper:]]'    <<<"$pass" || : $(( erg++ ))
grep -q '[!@#$%^&*()+-]' <<<"$pass" || : $(( erg++ ))

(( 6 - ${#pass} > erg )) && echo $(( 6 - ${#pass} )) ||  echo $erg