*** 3000shell.c		2021-01-22 00:57:39.000000000 -0500
--- 3000shell-nofork.c	2025-02-22 02:21:21.783392717 -0500
***************
*** 27,32 ****
--- 27,33 ----
  #define COMM_SIZE 32
  
  const char *proc_prefix = "/proc";
+ int found = 0;
  
  void parse_args(char *buffer, char** args, 
                  size_t args_size, size_t *nargs)
***************
*** 94,99 ****
--- 95,101 ----
          int r, stat_return;
  
          struct stat file_status;
+ 	found = 0;
  
          if (name[0] == '.' || name[0] == '/') {
                  strncpy(fn, name, fn_size);
***************
*** 124,129 ****
--- 126,132 ----
                  stat_return = stat(fn, &file_status);
  
                  if (stat_return == 0) {
+ 			found = 1;
                          return;
                  }
  
***************
*** 224,229 ****
--- 227,238 ----
          int fd, *ret_status = NULL;
          char bin_fn[BUFFER_SIZE];
  
+ 	find_binary(args[0], path, bin_fn, BUFFER_SIZE);	
+ 	if (!found) {
+ 		fprintf(stderr, "Command not found!\n");
+ 		return;
+ 	}
+ 
          pid = fork();
          if (pid) {
                  if (background) {
***************
*** 234,241 ****
                          pid = wait(ret_status);
                  }
          } else {
-                 find_binary(args[0], path, bin_fn, BUFFER_SIZE);
- 
                  if (stdout_fn != NULL) {
                          fd = creat(stdout_fn, 0666);
                          dup2(fd, 1);
--- 243,248 ----