adding descriptions into the public cert

cert-add-descripton.sh

#!/bin/bash

ARG1=$1
META_ONLY=false
NL=$'\n'

if [ "$ARG1" = "-m" ]; then
  META_ONLY=true
elif [ "$ARG1" = "-h" ]; then
  echo "Usage: $0 -hm"
  echo " -m: meta only without cert"
  echo " -h: help"
  exit -1
fi

while IFS= read -r line || [ -n "$line" ]; do
  if echo $line | grep "BEGIN CERTIFICATE" >/dev/null; then
    A_CERT=$line
    continue
  fi
  A_CERT="${A_CERT}${NL}${line}"
  if echo $line | grep "END CERTIFICATE" >/dev/null; then
    META=$(openssl x509 -noout -nocert -subject -startdate -enddate -serial <<<"$A_CERT")
    [ "$META_ONLY" = true ] && A_CERT=
    [ -n "$OUTPUT" ] && OUTPUT="${OUTPUT}${NL}"
    OUTPUT="${OUTPUT}${META}${NL}${A_CERT}"
  fi
done
echo "$OUTPUT"