linux系统中如何查看系统版本内核等信息

1、

[root@PC3 test]# uname -a
Linux PC3 3.10.0-123.el7.x86_64 #1 SMP Mon May 5 11:16:57 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux

2、

[root@PC3 test]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)

3、

[root@PC3 test]# cat /proc/version
Linux version 3.10.0-123.el7.x86_64 (mockbuild@x86-017.build.eng.bos.redhat.com) (gcc version 4.8.2 20140120 (Red Hat 4.8.2-16) (GCC) ) #1 SMP Mon May 5 11:16:57 EDT 2014

4、

[root@PC3 test]# hostnamectl
   Static hostname: PC3
         Icon name: computer
           Chassis: n/a
        Machine ID: b7fae4ce730a4eb598ae4e92f7ad3683
           Boot ID: 51902f79c0704df787767009b38b34e5
    Virtualization: vmware
  Operating System: Red Hat Enterprise Linux Server 7.0 (Maipo)
       CPE OS Name: cpe:/o:redhat:enterprise_linux:7.0:GA:server
            Kernel: Linux 3.10.0-123.el7.x86_64
      Architecture: x86_64

5、

[root@PC3 test]# lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID: RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 7.0 (Maipo)
Release:        7.0
Codename:       Maipo