Create a "correctly hashed certificate directory"

hash.sh

shopt -s extglob
shopt -s nullglob

for i in *.[0-9]; do
    rm $i
done

# create a hashed directory for ssl use
for i in *.@(cer|crt|pem); do
    hash=`openssl x509 -hash -noout -in $i`
    declare -i j=0
    while [ -f "$hash.$j" ]; do
        j+=1
    done
    ln -s $i "$hash.$j"
done