Set hostname using hostnamectl for CentOS 7

1. Listing hostname using “hostnamectl” or “hostnamectl status”

[root@localhost ~]# hostnamectl
Static hostname:
Icon name: computer-server
Chassis: server
Machine ID: aaaaaaaaaaaaa
Boot ID: ddddddddddd
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-327.el7.x86_64
Architecture: x86-64

2.Setting static host-name using hostnamectl

# hostnamectl set-hostname "" --static

3. Delete static host-nameusing hostnamectl

# hostnamectl set-hostname "" --static

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