A simple script to create an csr for a SSL certificate request. Only thing a user must do is to adapt the dommainname and answer the questions asked.

createCertificate.sh

#!/bin/bash

domainname="www.dommainname.com"

namekeyfile="$domainname.key"
namecsrfile="$domainname.csr"

# first create a private key
openssl genrsa -out $namekeyfile 2048

# second create the certificate request
openssl req -new -sha256 -key $namekeyfile -out $namecsrfile