using System;

using System.Linq;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

            string cmd = "Static hostname: gatewayIcon name: computer - desktopChassis: desktopMachine ID: 706ecaf18cea4c919eb515d0e73c7fe4Boot ID: c2f95d12ab334e57ac7e6503f7d0cd87Operating System: CentOS Linux 8(Core)CPE OS Name: cpe:/ o:centos: centos: 8Kernel: Linux 4.18.0 - 147.3.1.el8_1.x86_64Architecture: x86 - 64Thu Dec 30 15:31:24 EST 2021total used free shared buff / cache availableMem: 7887756 455084 4067136 427084 3365536 6746868Swap: 8183804 0 8183804Filesystem Size Used Avail Use % Mounted ondevtmpfs 3.8G 0 3.8G 0 % / devtmpfs 3.8G 84K 3.8G 1 % / dev / shmtmpfs 3.8G 417M 3.4G 11 % / runtmpfs 3.8G 0 3.8G 0 % / sys / fs / cgroup/ dev / mapper / cl - root 50G 3.2G 47G 7 % // dev / sda2 976M 188M 721M 21 % / boot/ dev / sda1 599M 6.8M 593M 2 % / boot / efi/ dev / mapper / cl - home 53G 12G 42G 22 % / hometmpfs 771M 200K 771M 1 % / run / user / 1000total 120G 15G 105G 13 % -procs---------- - memory------------ - swap------ - io---- - system--------cpu---- -r b swpd free buff cache si so bi bo in cs us sy id wa st2 0 0 4067108 4884 3360652 0 0 0 2 1 3 37 2 61 0 0";

            var diagtext = cmd;

​

            var split = Regex.Split(diagtext, @"%");

​

            var target = split.ElementAt(split.Length - 2).Split();

            var val = target.ElementAt(target.Length - 2);

​

            Console.WriteLine(val);

    }

}