如果查看linux操作系统的版本信息

下面三个命令都可以查看linux操作系统的版本信息

• cat /etc/os-release
• lsb_release -a
• hostnamectl

cat /etc/os-release

[test@test01 ~]$ cat /etc/os-release
NAME="Oracle Linux Server"
VERSION="7.4"
ID="ol"
VERSION_ID="7.4"
PRETTY_NAME="Oracle Linux Server 7.4"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:7:4:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 7"
ORACLE_BUGZILLA_PRODUCT_VERSION=7.4
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=7.4

lsb_release -a

[test@test01 ~]$ lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-ia32:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-ia32:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-ia32:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID:	OracleServer
Description:	Oracle Linux Server release 7.4
Release:	7.4
Codename:	n/a

hostnamectl

[test@test01 ~]$ hostnamectl
   Static hostname: test01
         Icon name: computer-vm
           Chassis: vm
        Machine ID: ed1297468c6e49359d209d23ff40cf52
           Boot ID: 90bd22f0fec64d46840c3c33b02951a6
    Virtualization: xen
  Operating System: Oracle Linux Server 7.4
       CPE OS Name: cpe:/o:oracle:linux:7:4:server
            Kernel: Linux 4.1.12-124.19.2.el7uek.x86_64
      Architecture: x86-64

uname -r 可以查看Linux kernel version:

[test@test01 ~]$ uname -r
4.1.12-124.19.2.el7uek.x86_64