1. Check the Linux kernel version command (two methods):
1、cat /proc/version
[root@S-CentOS home]# cat /proc/version
Linux version 2.6.32-431.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2013
2、uname -a
[root@S-CentOS home]# uname -a
Linux S-CentOS 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Second, the command to view the Linux system version (3 methods):
1. lsb_release -a, you can list all version information:
[root@S-CentOS ~]# lsb_release -a
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0- angry
Distributor ID: CentOS
Description: CentOS release 6.5 (Final)
Release: 6.5
Codename: Final
This command works on all Linux distributions, including RedHat, SUSE, Debian… etc.
2. cat /etc/redhat-release, this method is only suitable for Redhat Linux:
[root@S-CentOS home]# cat /etc/redhat-release
CentOS release 6.5 (Final)
3. cat /etc/issue, this command also applies to all Linux distributions.
[root@S-CentOS home]# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m