My server has 8 cores with 16GB RAM. I'm looking for command or tool which will provide output similar to windows Task Manager.

I found commands gtop, gotop for RAM, but for CPU usage it is segregated for each core. Is it possible to get a total CPU average.

Thanks for your time.

That is interesting. I have never heard about that. But probably it is my own problem. And I have never needed that. You can simply calculate it using top (for example). Why do you need it at all?

top, by default, displays aggregate usage of CPUs. I recently learned that by typing the number 1 while it's running would display usage for each CPU.

Of course, top is a command-line commmand. I don't have gtop, etc. Do have KSysGuard which also displays CPU independently.

So, top:

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Keep looking - I see a reference to vtop that seems to do the CPU as aggregated. Lots of other longer established options as well.
Given that they all likely get their data from /proc/stat (I haven't looked at any of the code), should be pretty easy to add/amend the code to suit.
The beauty of open source versus proprietary.

Windows task manager is a GUI interface. There are plenty of those in the GNU/Linux world. Ksysguard is one example mentioned, there are many others as well. Personally I prefer KDE widgets for the purpose. But that may not be appropriate for a server.

Question is. Do your server have a GUI? And which one?

As above, if you want a gui, it depends a bit on which distro you have, but there are plenty of options.
Search your repos for '*system-monitor*' - prob first part of the name will inc the name of your desktop SW (in my case gnome or mate)

I have no idea how does Windows Task Manager work, but here are three options to consider for getting a total CPU average for a multicore system:

1. conky

Quote from its manpage:

You will have to fiddle with its config a bit and either run conky in GUI mode so it paints on your desktop, or make it produce text output that you can pipe to another GUI tool

2. gkrellm

Perhaps not trendy anymore, but I've used it for many years and it served me well.

F1 to open settings, then Builtins -> CPU, and under the SMP Charts Select tick the Composite CPU checkbox. I believe you can even collect such kind of data on the server using gkrellmd and have it displayed on your remote workstation by grellm that connects to the server, if you need that.

3. htop

By default htop will show CPU load per core. After you run it for the first time, it creates a default config file in ~/.config/htop/htoprc

Open that file in a text editor and find the line

If you don't need the per-core load graphs, you can replace "AllCPUs" there with "CPU"

If you'd like to keep the per-core load graphs as well, but also want to see a total CPU average load, you could go with a setting like

This way you will have an additional load bar displayed first on the left side, just above the per-core load bars.

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Not sure exactly what a "total CPU average" means..

But let's not forget to mention the "uptime" command in all of this. CLI.
Also worth mentioning is "powertop", it shows you some relevant info. CLI.