A shell in Linux is the interpreter that provides a commandline interface (CLI). There are many kinds of shells.
Strictly speaking, a "shell" is simply the interface between the user and the rest of the operating system. In that definition not all shells on Linux are command lines. However, most day-to-day usage of the term "shell" does refer to command line user interfaces. Finally, "Linux shell" is not a thing. Linux is an operating system, specifically a kernel, not a shell. Most Linux distributions use BASH, but I personally prefer ZSH.
Depends on the distro, but most use wither bash or sh.
The Z shell is a Bourne-compatible shell for Linux and Unix systems.
bash (Bourne Again Shell) is the default shell in most Linux distributions. It was created as part of the GNU project.
It can depend on which shell environment you are using, but what I use is: function something { # body of routine } # call the function something
Shell is the bridge between Kernel and User.
echo $SHELL
The courses available for Linux include Linux server, Linux desktop, bash shell, and many others.
Linux shell is a programming language. its fully different from others progrmming language. the script which is used in Linux quite tough to remember if we comparison to other programming laguages.
The shell.
You don't Shell files/programs are not compiled. If you want to run a process through 'vi' then use the ':!' 'ex' command to shell out and execute it.
I am assuming you mean either a POSIX shell or a way to SSH into a Linux box. A POSIX shell is as simple as installing MinGW, which will usually also provide BASH, usually for scripts. For SSH you can just use PuTTY and connect to your Linux box (Assuming it has an SSH server running.) that way.