查看系统相关信息

[root@GA ~]# hostnamectl
   Static hostname: GA
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 32223f8de6824be685c6ad69770fac3b
           Boot ID: 4f6a9de8141841b4ac7a0b0cf4fb8753
    Virtualization: vmware
  Operating System: CentOS Linux 7 (Core)