return 1 3. Build your own shell: A shell in a Linux system is an interface that allows the user to interact with the OS. It gives the user a prompt where a command can be entered and executed. One technique to implement a shell interface is shown in the figure below where: parent (pid 0) waitparent resumes parent exito child (pdexeco) The parent process: - o Continuously parses what the user enters on the command line o Builds an array of character strings (e.g, args) that has the user command and o Creates a separate child process to execute the user command and waits for it arguments. to finish execution before it reads the next command from the user. Note: All labs are due before next week's lab starts return 1 3. Build your own shell: A shell in a Linux system is an interface that allows the user to interact with the OS. It gives the user a prompt where a command can be entered and executed. One technique to implement a shell interface is shown in the figure below where: parent (pid 0) waitparent resumes parent exito child (pdexeco) The parent process: - o Continuously parses what the user enters on the command line o Builds an array of character strings (e.g, args) that has the user command and o Creates a separate child process to execute the user command and waits for it arguments. to finish execution before it reads the next command from the user. Note: All labs are due before next week's lab starts