A ssl cert and key verify shell

sslverify.sh

#!/bin/bash
# createAt 20210701
# Author: CROTEL
#
# Usage:
# 
# ./sslverify.sh cert=/etc/nginx/ssl/server.crt key=/etc/nginx/ssl/server.key
# 
# crt and key must use absolutely location
#
# updateAt 20210707
# add DNS, Subject, Issuer[s] and OCSP.


for ARGUMENT in "$@"
do

    KEY=$(echo $ARGUMENT | cut -f1 -d=)
    VALUE=$(echo $ARGUMENT | cut -f2 -d=)   

    case "$KEY" in
            cert)   CERTPATH=${VALUE} ;;
            key)    KEYPATH=${VALUE} ;;     
            *)   
    esac    

done
function expir()
{
openssl x509 -text -noout -in $CERTPATH | grep -e 'Before\|After\|DNS\|Subject:\|Issuer[:s]\|OCSP'
}
function certmd5()
{
openssl x509 -noout -modulus -in $CERTPATH | openssl md5
}
function keymd5()
{
openssl rsa -noout -modulus -in $KEYPATH | openssl md5
}
echo "$(expir)"
if [[ "$certmd5" -eq "$keymd5" ]]
then
echo "Verified: OK"
fi