Generate Self-signed certificate

selfsigned.sh

#!/usr/bin/env bash
# -------------------------------------------------------------------------
#  Generate Self-signed certificate
# -------------------------------------------------------------------------
# Usage :
#
# bash selfsigned.sh <domain>
#
# -------------------------------------------------------------------------

if [ "$1" ]; then

    openssl genrsa -out "$1".key 2048
    openssl req -new -batch -subj /commonName="$1"/ -key "$1".key -out "$1".csr
    mv "$1".key "$1".key.org
    openssl rsa -in "$1".key.org -out "$1".key
    rm "$1".key.org
    openssl x509 -req -days 3652 -in "$1".csr -signkey "$1".key -out "$1".crt

fi