For Ubuntu 16.04 and 18.04
$ wget https://raw.githubusercontent.com/da-spaceman/Zero-scripts/master/zeronode_install.sh
$ chmod u+x zeronode_install.sh
$ ./zeronode_install.sh
For Ubuntu 20.04 [get_ip() function is broken, so this script won't work on a VPS with more than 1 IP address]
$ wget https://raw.githubusercontent.com/da-spaceman/Zero-scripts/master/zeronode_install_20.04.sh
$ chmod u+x zeronode_install_20.04.sh
$ ./zeronode_install_20.04.sh