$ cat /etc/*-release | grep NAME
NAME="CentOS Linux"
PRETTY_NAME="CentOS Linux 8 (Core)"
CPE_NAME="cpe:/o:centos:centos:8"

$ stat /lib/systemd/systemd
  File: /lib/systemd/systemd
  Size: 2523648         Blocks: 4936       IO Block: 4096   regular file
Device: 2h/2d   Inode: 1407374884100769  Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-05-31 13:17:53.497597100 +0700
Modify: 2020-04-10 04:52:32.000000000 +0700
Change: 2020-05-30 12:06:52.791586300 +0700
 Birth: -

$ systemctl
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down