MacOSX Terminal – Convert P7B Certificate to PEM/CER Certificate

#!/bin/sh

#  ConvertScript.sh
#
#  This script is designed to take a p7b certificate bundle and convert it to a cer certificate bundle
#
#  Created by David Kittell on 8/8/16.
#

clear

# Variables - Start
declare sCerCert=""
# Variables - Stop

echo "Current Directory: $(pwd)\n"

# Ask user for the directory that the p7b cert is in
printf "What directory is the p7b cert in?\n"
read sCertDirectory

# Evaluate the given directory
eval dir="$sCertDirectory"

sCertDirectory=$(echo $dir  | sed "s,/$,,")
echo "\nCert Location: $sCertDirectory\n"

# Loop through the given directory and convert each p7b file
echo "NOTE: Conversion does not remove the P7B file"
for filename in $sCertDirectory/*.p7b; do
    #echo "$filename\n"
    sCerCert=${filename%.p7b}.cer
    echo "Converting $filename to $sCerCert"
    openssl pkcs7 -inform DER -outform PEM -in $filename -print_certs > $sCerCert
done