What command can you use to check the version number on centos?

Commands to check the version number: 1. "cat /etc/issue" or "cat /etc/redhat-release", which can output the centos version number; 2. "cat /proc/version", "uname -a" or "uname -r" can output the kernel version number.

#The operating environment of this tutorial: centos6.5 system, thinkpad t480 computer.

View centos version

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)

View kernel linux version

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

Recommended: "centos usage tutorial"

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