centos用什么命令可查版本号

查版本号的命令：1、“cat /etc/issue”或“cat /etc/redhat-release”，可输出centos版本号；2、“cat /proc/version”、“uname -a”或“uname -r”，可输出内核版本号。

本教程操作环境：centos6.5系统、thinkpad t480电脑。

查看centos版本

cat /etc/issue

[root@localhost ~]# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m

cat /etc/redhat-release

[root@localhost ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)

查看内核linux版本

cat /proc/version

[root@localhost ~]# cat /proc/version
Linux version 2.6.32-754.15.3.el6.x86_64 (mockbuild@x86-01.bsys.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC) ) #1 SMP Tue Jun 18 16:25:32 UTC 2019

uname -a

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-754.15.3.el6.x86_64 #1 SMP Tue Jun 18 16:25:32 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

uname -r

[root@localhost ~]# uname -r
2.6.32-754.15.3.el6.x86_64

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