#!/bin/sh

# This script prints SSL Certificate Expiry.

data="$(echo | openssl s_client -servername "$1" -connect "$1":443 2>/dev/null | openssl x509 -noout -enddate | sed -e 's#notAfter=##')"

ssldate="$(date -d "${data}" '+%s')"
nowdate="$(date '+%s')"
diff="$((ssldate-nowdate))"

echo $((diff/86400))
