useradd -m john &&
cd ~/.ssh/ &&
rm -rf tmp_rsa* &&
ssh-keygen -t rsa -b 4096 -C "john@email.com" -N '' -f john_rsa &&
echo "#tmp_rsa" >> authorized_keys &&
cat john_rsa.pub >> authorized_keys &&
cat authorized_keys &&
service ssh restart &&
echo ">>> Done"