How to check the linux kernel version

Let’s introduce the command to view the kernel in Linux?

Linux view kernel version command

uname -r
或
cat /proc/version

View distribution version

cat /etc/issue
或
cat /etc/redhat-release（cat /etc/centos-release）

The meaning of version number

There are two types of Linux kernel versions: stable version (minor version is an even number) and development version (minor version is an odd number)

Version number: major version. minor version. release version - modified version

Such as:

2.6.32-642.el6.x86_64

3.10.0-693.17.1.el7.x86_64

Note:

el represents Enterprise Linux, 6 represents Centos6

x86_64 represents the CPU structure , that is, 64-bit

Generally use the first two numbers (major and minor versions) to describe the kernel series

Release version: While the major and minor version architecture remains unchanged, the new functions are accumulated The kernel version released after reaching a certain level

Modified version: modify some bugs, etc.

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