chmod -R 777 /efs is not safer
chmod -R ugo+rwx /efs is safer - Does not override SETUID AND SETGID BITS - Just Appends permissions
https://unix.stackexchange.com/questions/296675/is-chmod-r-ugorwx-safer-than-chmod-r-777
sudo tee -a
Append text when using sudo
echo '104.20.186.5 www.cyberciti.biz' | sudo tee -a /etc/hosts
