pwnedpassword3.sh

#!/usr/bin/env sh

set -e
#set -x

# ask user for password
read -p "Input password for check: " -t 30 passwd

# sha1sum replaced openssl sha1 | awk '{ print $2;}'

if [ -n "$passwd" ]; then

    echo -n "$passwd" | openssl sha1 | awk '{ print $2;}' | \
        awk '{
                prefix=substr($1,1,5); reminder=substr($1,6,35);
                if(system("curl -sk https://api.pwnedpasswords.com/range/" prefix "> ./pwhashes.txt")){print "Error"; exit}

                cmd="cat ./pwhashes.txt | tr [A-Z] [a-z] | grep \"" reminder "\"";
                cmd | getline result; close(cmd); split(result,arr,":");

                if(!length(arr[2])) print "Password not found"; else print "Password found: " arr[2]

                system("rm ./pwhashes.txt");
        }'

fi