How to implement these 2 features in C? Its shell script in C. Starter code provided. Use the corresponding system call.

Starter code:

Concepts: Command-line parameters System calls: fork(), execvp), wait0 #include unistd.h> #include #include errno.h #include #include types.h> #include #include #include extern char ** get args); int main() int char 1 args; while (1) printf ("Command ('exit' to quit): "); args-get_args(O; for (= 0; args [i] != NULL ; i++) { printf ("Argument %d : %s ", i, args[i]); printf ("No arguments on line! "); printf ("Exiting...In"); if (args [0] = NULL) { else if !strcmp (args [0], "exit") break