#include #include #include #include #include int main(int argc, char** argv) { StringView date; os::ArgumentParser parser; parser.add_description("Display the current (or another) date and time."_sv); parser.add_value_argument(date, 'd', "date"_sv, true, "the UNIX timestamp to display instead of the current time"_sv); parser.parse(argc, argv); time_t now; if (date.is_empty()) { now = time(NULL); } else { now = strtol(date.chars(), nullptr, 10); } fputs(ctime(&now), stdout); }