text: #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  int main(int argc, char *argv[])
  {
      char *cat = "/bin/cat";
  
      if (argc < 2)
      {
          printf("Please type a file name.\n");
          return 1;
      }
  
      char *command = malloc(strlen(cat) + strlen(argv[1]) + 2);
  
      sprintf(command, "%s %s", cat, argv[1]);
      system(command);
      
      return 0;
  }