Shell script on ubuntu that satisfies the criteria

The Shell or Command Line Interpreter is the fundamental User interface to an Operating System. Your first project is to write a simple shell, as you learnt in all previous labs - myshell- that has the following properties: Tasks: The shell must support the following internal commands: I. cd - Change the current default directory to . If the argument is not present, report the current directory. If the directory does not exist an appropriate error should be reported. This command should also change the PWD environment variable. ii. cls - Clear the screen. ii. dir - List the contents of directory v. print - Display - Create the folder . vii. rd - Remove the folder if the folder is empty, should display error message if it is not ix. quit - Quit the shell. X. The shell environment should contain shell-/myshell where /myshell is the full path for the shell executable (not a hardwired path back to your directory, but the one from which it was executed). iv