159         printf("ERROR: Path too long!\n");  in shell_cmd_cd()
201             printf("ERROR: Path too long!\n");  in shell_cmd_cd()
225             printf("ERROR: Cannot switch to directory: %s\n", new_path);  in shell_cmd_cd()
273     printf("\n");  in shell_cmd_ls()
292         printf("%s\n", shell_current_path);  in shell_cmd_pwd()
325         printf("%s", buf);  in shell_cmd_cat()
425         printf("Failed to remove %s, retval=%d\n", full_path, retval);  in shell_cmd_rmdir()
459         printf("Failed to remove %s, retval=%d\n", full_path, retval);  in shell_cmd_rm()
501             printf("[1] %d\n", pid);  in shell_cmd_exec()
528         printf("Usage: Kill <pid>\n");  in shell_cmd_kill()
556         printf("Invalid argument: %s\n", argv[1]);  in shell_cmd_free()
564         printf("Failed: retval=%d", retval);  in shell_cmd_free()
568     printf("\ttotal\tused\tfree\tshared\tcache\tavailable\n");  in shell_cmd_free()
569     printf("Mem:\t");  in shell_cmd_free()
572 …printf("%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t\n", mst.total >> 10, mst.used >> 10, mst.free >> 10, mst.sh…  in shell_cmd_free()
577 …printf("%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t\n", mst.total >> 20, mst.used >> 20, mst.free >> 20, mst.sh…  in shell_cmd_free()