#include #include #include #include int main(int argc, char** argv) { StringView mode_string; StringView path; os::ArgumentParser parser; parser.add_description("Change the permissions of a file."_sv); parser.add_positional_argument(mode_string, "mode"_sv, true); parser.add_positional_argument(path, "path"_sv, true); parser.parse(argc, argv); mode_t mode = (mode_t)strtoul(mode_string.chars(), NULL, 8); if (chmod(path.chars(), mode) < 0) { perror("chmod"); return 1; } }