text: // init: The initial user-level program
  
  #include "types.h"
  #include "stat.h"
  #include "user.h"
  #include "fcntl.h"
  
  char *argv[] = { "sh", 0 };
  
  int main(void) {
      int pid, wpid;
  
      if(open("console", O_RDWR) < 0){
          mknod("console", 1, 1);
          open("console", O_RDWR);
      }
      dup(0);  // stdout
      dup(0);  // stderr
  
      for(;;) {
          printf(1, "Initializing Jarads Shell :: Xv6\n");
          pid = fork();
          if(pid < 0){
              printf(1, "init: fork failed\n");
              exit();
          }
          if(pid == 0){
              exec("sh", argv);
              printf(1, "init: exec sh failed\n");
              exit();
          }
          while((wpid=wait()) >= 0 && wpid != pid)
              printf(1, "zombie!\n");
      }
  }
  