55         printf("[DragonOS] %s # ", shell_current_path);  in main_loop()
81             printf("\n");  in main_loop()
86             printf("\n");  in main_loop()
113         printf("%c", '\b');  in clear_command()
142     printf("%s", buf);  in change_command()
163             printf("%c", '\b');  in shell_readline()
174             printf("%c", '\b');  in shell_readline()
189             printf("%c", '\b');  in shell_readline()
200                     printf("%c", '\b');  in shell_readline()
202                     printf("%c", '\b');  in shell_readline()
210                 printf("%c", '\b');  in shell_readline()
212                 printf("%c", key);  in shell_readline()
231             printf("%c", '\b');  in shell_readline()
241     printf("\n\n");  in print_ascii_logo()
242     printf(" ____                                      ___   ____ \n");  in print_ascii_logo()
243     printf("|  _ \\  _ __   __ _   __ _   ___   _ __   / _ \\ / ___| \n");  in print_ascii_logo()
244     printf("| | | || '__| / _` | / _` | / _ \\ | '_ \\ | | | |\\___ \\  \n");  in print_ascii_logo()
245     printf("| |_| || |   | (_| || (_| || (_) || | | || |_| | ___) |\n");  in print_ascii_logo()
246     printf("|____/ |_|    \\__,_| \\__, | \\___/ |_| |_| \\___/ |____/ \n");  in print_ascii_logo()
247     printf("                     |___/     \n");  in print_ascii_logo()
248     printf("\n\n");  in print_ascii_logo()