Where to drive commands like $ gem install ... to install on Windows? Is it possible?

Question

terminal emulator

Chase me, mock me
I don’t know a damn thing about consoles, terminals, although I have the feeling that I have searched the entire Internet in search of understanding them
. Often I want to download something, but there are no installers on the manufacturer’s page. Stupidly said "drive the command" $ tadata "and everything is in openwork."
Such commands are more inherent in any Unix systems, but what I want to download is usually a popular shnyag, but for some reason I can’t believe that it is not on Windows.
So it is on Windows.
So in Windows, you can also drive the same command somewhere, but I don’t know how.
Does that mean I'm the only one that's stupid?
Explain to me what I do not understand in this life?
Forgive me for the dumbest wording of the question, but I don’t know how to ask Google this to answer in a human way. I decided to ask you, hoping for your responsiveness
----
I did not receive the answer from here, but, in general, I understood. The bottom line was that I was so dumb. It turned out that you can download, for example, node.js and "npm" commands will become available in the fucking cmd console. For example "npm inspall *some_program*". Same with gem: install Ruby and "gem" commands will become available in the same fucking console

Answer 1

google search "jekyll windows" ->
jekyll-windows.juthilo.com ->
https://github.com/madhur/PortableJekyll ->
Portable Jekyll for Windows www.madhur.co .in/blog/2013/07/20/buildportablejeky...
In addition to the above, it is worth paying attention to the installation requirements.
Windows is not officially supported.
PS If you are of course about Jekyll