C shell

Here’s another shell, which means that C shell also runs from a window and executes user commands. The main difference is that the C shell is easier and faster to use, thanks to the language’s style, which resembles C, making it more readable.

C (, as in the letter c) is a general-purpose, procedural computer programming language supporting structured programming, lexical variable scope, and recursion, with a static type system. By design, C provides constructs that map efficiently to typical machine instructions.