C100 shell is always a good start for beginners in terms of ease of use, it is a shell that does not tire people, but unfortunately it is easily noticed on almost every server and we know that it is not a good backdoor because it is deleted by the server, although it is not a very good shell on the basis of privacy, as we said, at the beginner level. A very ideal shell, I can confidently say that it will enable you to understand the concept of “Shell” in the easiest level for new schools.