临时命令¶

hostname:

得到当前os的hostname::

    hostname

临时修改hostname::

    hostname <newhostname>

hostnamectl:

查看hostname
[root@client ~]#  hostnamectl
   Static hostname: n/a
Transient hostname: hello.hostname
         Icon name: computer-vm
           Chassis: vm
        Machine ID: b4ffb57ff9244fc8b0caf9e4dd397d86
           Boot ID: 66c004e580264e0cb54d733e11e8cfab
    Virtualization: vmware
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-957.21.3.el7.x86_64
      Architecture: x86-64

设置hostname
[root@client ~]# hostnamectl set-hostname client
[root@client ~]# hostname
client
[root@client ~]# cat /etc/hostname
client