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#!/bin/sh
set -eu
set -o pipefail
host="$1"
port="${2:-443}"
openssl s_client -connect "$host:$port" < /dev/null 2>/dev/null | perl -nle 'print if /BEGIN CERTIFICATE/../END CERTIFICATE/' | openssl x509 -text | perl -nle 'print unless /BEGIN CERTIFICATE/../END CERTIFICATE/'
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