I’m totally new on GitHub, and don’t know how to make good use of it. How do l make use of this link https://docs.github.com/en/authentication/connecting-to-github-with-ssh/testing-your-ssh-connection?platform=windows ??
My purpose is to try out my SSH key.


Yes and no: No, on WSL, it’s the
wslcommand executed in the MS Windows PowerShell, that will give you the Linux command prompt.Yes, from there on, the commands to be executed within the shell are identical.
So it’s the fish terminal where i use the linux commands ?
I’m not a WSL user, but I presume it lets you run any shell that’s installed and available to its $PATH.
So if you want to do the commands in bash, and you’re not in (or not sure if you’re in) bash, you can just type bash into the terminal prompt of whatever currently running shell, hit enter, then you’re in bash. Or for fish, or whatever else.
(ps, my personal preference encouraged, yes, in general, use fish (where suitable [~ different usecase to wanting to specifically use “Git Bash”, like in OP’s link’s first step, I presume]), fish’s more human friendly in syntax and interactivity.) ;)
Yes, whatever shell your WSL is using. Usually, it should be the Ubuntu default Bash, but if you happen to have chosen a distro that uses Fish or installed it yourself, it’s Fish.