查看 Linux 安装的是哪种操作系统命令

方法一、使用 hostnamectl 命令查看操作系统信息

[root@xxx ~]# hostnamectl
   Static hostname: xxx
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 2da8dbcd2d0148c588848b987c1941d7
           Boot ID: 1c816e9eb08649e78e0fef5381a625de
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-693.el7.x86_64
      Architecture: x86-64

方法二、使用 cat /etc/os-release 命令查看操作系统信息

[root@xxx ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"