In C language, please include notes as well explain each lineEach member the team will write the code for one of the following customized commands:1. shell*: the environment that will execute the...

In C language, please include notes as well explain each line Each member the team will write the code for one of the following customized commands: 1. shell*: the environment that will execute the rest of the commands. the shell won’t terminate unless the exit command gets executed. The shell displays a different command prompt (i.e. something other than $ and >).