View the Linux kernel version.

Method 1:

Command: uname-
Purpose: view the system kernel version number and system name.

Method 2:

Command: CAT/proc/version
Purpose: view the version information under the directory "/proc", and obtain the kernel version number and system name of the current system.

Note:

The/proc file system is not a common file system, but an image of the system kernel. That is to say, the files in this directory are stored in the system memory, it provides interfaces for accessing system kernel data in the form of a file system. The information of the command "uname-a" is obtained from this file. Of course, you can use the command of method 2 to directly view the content of the file to achieve the same effect. in addition, if the parameter "a" is added, the system name is displayed.