Question Write a C program, call it myBash, to act like Bash. Yourprogram should go in an infinite loop waiting for the user to entera line of commands (single or multiple). Once a line is entered,your program should assemble and execute each command and performpiping if needed. To make it simple, you can assume that piping islimited to two commands only.The commands/programs location can be anywhere in your $PATH andmight have arguments.Examples of input lines entered by the user :• myBash> ps -e• myBash> more letter.txt | wc -c• myBash> ps -ef; date ; echo Good DayIn particular, you should only use Unix I/O system calls.

Answer::Part A :-The C program hat will act as a shell command line interpreter for the Linux kernel.#include<stdio.h>#include<string.h>#include<stdlib.h>#include<unistd.h>#include<sys/types.h>#include<sys/wait.h>#include<readline/readline.h>#include<readline/history.h>#define MAXCOM 1000 // max number of letters to be supported#define MAXLIST 100 // max number of commands to be supported// Clearing the shell using escape sequences#define clear() printf("\033[H\033[J")// Greeting shell during startupvoid init_shell(){    clear();    printf("\n\n\n\n******************"        "************************");    printf("\n\n\n\t****MY SHELL****");    printf("\n\n\t-USE AT YOUR OWN RISK-");    printf("\n\n\n\n*******************"        "***********************");    char* username = getenv("USER");    printf("\n\n\nUSER is: @%s", username);    printf("\n");    sleep(1);    clear();}// Function to take inputint takeInput(char* str){    char* buf;    buf = readline("\n>>> ");    if (strlen(buf) != 0) {        add_history(buf);        strcpy(str, buf);        return 0;    } else {        return 1;    }}// Function to print Current Directory.void printDir(){    char cwd[1024];    getcwd(cwd, sizeof(cwd));    printf("\nDir: %s", cwd);}// Function where the system command is executedvoid execArgs(char** parsed){    // Forking a child    pid_t pid = fork();    if (pid == -1) {        printf("\nFailed forking child..");        return;    } else if (pid == 0) {        if (execvp(parsed[0], parsed) < 0) {            printf("\nCould not execute command..");        }        exit(0);    } else {        // waiting for child to terminate        wait(NULL);        return;    }}// Function where the piped system commands is executedvoid execArgsPiped(char** parsed, char** parsedpipe){    // 0 is read end, 1 is write end    int pipefd[2];    pid_t p1, p2;    if (pipe(pipefd) < 0) {        printf("\nPipe could not be initialized");        return;    }    p1 = fork();    if (p1 < 0) {        printf("\nCould not fork");        return;    }    if (p1 == 0) {        // Child 1 executing..        // It only needs to write at the write end        close(pipefd[0]);        dup2(pipefd[1], STDOUT_FILENO);        close(pipefd[1]);        if (execvp(parsed[0], parsed) < 0) {            printf("\nCould not execute command 1..");            exit(0);        }    } else {        // Parent executing        p2 = fork();        if (p2 < 0) {            printf("\nCould not fork");            return;        }        // Child 2 executing..        // It only needs to read at the read end        if (p2 == 0) {            close(pipefd[1]);            dup2(pipefd[0], STDIN_FILENO);            close(pipefd[0]);            if (execvp(parsedpipe[0], parsedpipe) < 0) {                printf("\nCould not execute command 2..");                exit(0);            }        } else {            // parent executing, waiting for two children            wait(NULL);            wait(NULL);        }    }}// Help command builtinvoid openHelp(){    puts("\n***WELCOME TO MY SHELL HELP***"        "\nCopyright @ Suprotik Dey" &#160 ... See the full answer