Below is the corrected fixed the code:

#include

#include

#include

#include

#include

#define MAX_CMD_LENGTH 1024

#define MAX_ARGS 64

int parse_input(char* input, char** args) {

int i = 0;

char* token = strtok(input, " \t ");

while (token != NULL) {

args[i++] = token;

token = strtok(NULL, " \t ");

}

args[i] = NULL;

return i;

}

int execute_cmd(char** args, char** path, int num_paths) {

pid_t pid = fork();

if (pid == -1) {

perror("fork");

return 1;

} else if (pid == 0) {

// child process

int i;

for (i = 0; i < num_paths; i++) {

char cmd[MAX_CMD_LENGTH];

snprintf(cmd, sizeof(cmd), "%s/%s", path[i], args[0]);

execv(cmd, args);

}

// if we reach here, execv failed

perror(args[0]);

exit(1);

} else {

// parent process

int status;

waitpid(pid, &status, 0);

return WEXITSTATUS(status);

}

}

int main(int argc, char** argv) {

// initialize path with /bin

char* path[2] = {"/bin", NULL};

int num_paths = 1;

// check if we're in batch mode

FILE* input_file = NULL;

if (argc > 2) {

fprintf(stderr, "Usage: %s [batch_file] ", argv[0]);

return 1;

} else if (argc == 2) {

input_file = fopen(argv[1], "r");

if (input_file == NULL) {

perror(argv[1]);

return 1;

}

}

// main loop

char* line = NULL;

size_t line_size = 0;

ssize_t line_len;

while (1) {

// prompt for input

if (input_file == NULL) {

printf("wish> ");

fflush(stdout);

}

// read input

line_len = getline(&line, &line_size, input_file != NULL ? input_file : stdin);

if (line_len == -1) {

// end of file or error

break;

} else if (line_len == 1) {

// empty line

continue;

} else if (strncmp(line, "exit", 4) == 0) {

// exit command

break;

} else {

// parse input

char* args[MAX_ARGS];

int num_args = parse_input(line, args);

// execute command

int ret = execute_cmd(args, path, num_paths);

if (ret != 0) {

printf("Command returned with error code %d ", ret);

}

// check for exit command

if (strcmp(args[0], "exit") == 0) {

break;

}

}

// free memory

free(line);

if (input_file != NULL) {

fclose(input_file);

}

return 0;

}

can you please implement this instruction in this code

8. Program Errors The one and only error message. You should print this one and only error message whenever you encounter an error of any type: char error_message[30] = "An error has occurred "; write(STDERR_FILENO, error_message, strlen(error_message));

also, the code above has some errors - please fix them