Bash_Scripts/Create-Remote-User.bash

#!/bin/bash --posix

set -e

# Remote System
REMOTE_SSH_SERVER=Kansas-3800X
REMOTE_HOST_NAME=69.30.230.226
REMOTE_USER_TO_CREATE=Mordhau

# Local System
SSH_FILE_DIRECTORY=~/.ssh
SSH_FILE_NAME=${REMOTE_USER_TO_CREATE}-id_edcsa
SSH_FILE=${SSH_FILE_DIRECTORY}/${SSH_FILE_NAME}
SSH_HOST=Kansas-3800X

ssh-keygen -b 521 -t ECDSA -f ${SSH_FILE} -N ""
chmod 600 ${SSH_FILE}

PUB_KEY_CONTENTS=$(cat ${SSH_FILE}.pub)

ssh ${REMOTE_SSH_SERVER} -f "useradd ${REMOTE_USER_TO_CREATE}; bash -l"
ssh ${REMOTE_SSH_SERVER} -f "mkdir /home/${REMOTE_USER_TO_CREATE}/.ssh; bash -l"
ssh ${REMOTE_SSH_SERVER} -f "touch /home/${REMOTE_USER_TO_CREATE}/.ssh/authorized_keys; bash -l"
ssh ${REMOTE_SSH_SERVER} -f "echo ${PUB_KEY_CONTENTS} >> /home/${REMOTE_USER_TO_CREATE}/.ssh/authorized_keys; bash -l"
ssh ${REMOTE_SSH_SERVER} -f "chown -R ${REMOTE_USER_TO_CREATE}:${REMOTE_USER_TO_CREATE} /home/${REMOTE_USER_TO_CREATE}/.ssh; bash -l"

cat << EOF >> ~/.ssh/config
Host ${SSH_HOST}
  HostName ${REMOTE_HOST_NAME}
  Match user ${REMOTE_USER_TO_CREATE}
    Identityfile ${SSH_FILE}
  LogLevel INFO
EOF

ssh ${REMOTE_USER_TO_CREATE}@${SSH_HOST} -f "mkdir ~/.bin"
ssh ${REMOTE_USER_TO_CREATE}@${SSH_HOST} -f "echo export PATH=$PATH:~/.bin > ~/.bash_profile"

echo
echo "Finished, login via ssh with \"${REMOTE_USER_TO_CREATE}@${SSH_HOST}\""