Hello this is my first blog entry. I have had a request for help for beginning command line help. There is probably too much to learn for one blog, so I will try, and write several beginner blogs.
The shell is a way to interface with your operating system. It is popular because it is a quick way to make changes. It is powerful, and you can get a lot of info quickly through the shell. Other names for a shell are: BASH, Terminal, or Console (sometimes cli (comand line)).