test ssl/tls version on server

testssl.sh

#!/bin/bash


server=$1
for version in ssl1 tls1 tls1_1 tls1_2 tls1_3; do
  echo "Testing $version on $server";
  echo | openssl s_client -connect $server:443 -$version > /dev/null 2> /dev/null;
  o=$?
  if [[ "$o" == "0" ]]; then
    echo "$version is supported";
   else
    echo "$version is NOT supported";
  fi
done