> on fedora its systemctl instead of service because they are all systemd up Fedora (and its derivatives like RHEL/CentOS/etc) still has the "service" command,

> on fedora its systemctl instead of service because they are all systemd up Fedora (and its derivatives like RHEL/CentOS/etc) still has the "service" command, it forwards to the corresponding systemctl command. The same for Debian (the comments in Debian's "service" command even mention it's a modified version of the RHEL/Fedora one).