Command line script to convert pfx with private key to pem format for Apache/nginx

pfx2pem.sh

#!/bin/bash
  
if [ "$#" -lt 1 ]; then
    echo "

Command Syntax:

    pfx2pem <cert> <optional:password>

"
    exit
fi

if [ ! -f "$1.pfx" ]; then
    echo "Error: The input file $1 does not exist"
fi


if [ "$#" -eq 2 ]; then
    openssl pkcs12 -in "$1".pfx -out "$1".cer -nodes -passin pass:"$2"
else
    openssl pkcs12 -in "$1".pfx -out "$1".cer -nodes
fi
openssl pkey -in "$1".cer -out "$1".key
openssl x509 -in "$1".cer -out "$1".crt

# verify the certs match
md5cert=$(openssl x509 -noout -modulus -in "$1".crt | openssl md5 | awk '{print $2}')
md5key=$(openssl rsa -noout -modulus -in "$1".key | openssl md5 | awk '{print $2}')

if [ "$md5cert" = "$md5key" ]; then
   echo "Export successful"
else
   echo "Cert and Key do not match."
fi

# show checksum/hashes of the exported private and public key.
echo "
    Private: $md5key
    Public:  $md5cert
"