Unix is the name of both a general specification for an operating system to meet, and the first system to meet that specification. Xenix is an implementation made by Microsoft in the late 1980s that met the Unix specification.
A "shell" can often refer to an "interface", in which case X-Windows is simply an example of an interface. In Unix and Linux, however, a "shell" is often used to refer to a command-line interface, such as bash or csh. The X Window system is system for displaying a graphical user interface (which in itself can vary significantly in appearance).
The difference is that one is a general concept, and the other is an example implementation. Unix is the name of a specific family of operating systems.
C is a programming language. A shell is an interface.
Shell is the bridge between Kernel and User.
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.
shell and orbit are same
shell and orbit are same
how can you tell the difference between a tortoise and a turtle by shell in picture
A shell in Linux is the interpreter that provides a commandline interface (CLI). There are many kinds of shells.
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.
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.