How To Check the Kernel Version in Linux / Ubuntu / CentOS

root@pve:/# uname –help
Usage: uname [OPTION]…
Print certain system information. With no OPTION, same as -s.

-a, –all print all information, in the following order,
except omit -p and -i if unknown:
-s, –kernel-name print the kernel name
-n, –nodename print the network node hostname
-r, –kernel-release print the kernel release
-v, –kernel-version print the kernel version
-m, –machine print the machine hardware name
-p, –processor print the processor type or “unknown”
-i, –hardware-platform print the hardware platform or “unknown”
-o, –operating-system print the operating system
–help display this help and exit
–version output version information and exit

With these commands followed by the respective option,

The following command works with all Linux distributions, such as Red Hat, CentOS, Debian, and Ubuntu.
It also works on other UNIX-like operating systems such as HPUX, FreeBSD, OpenBSD, Solaris, etc.

Use the following command to check which kernel version your server is currently running:

root@pve:/# uname -r

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