#include <u.h>
#include <base.h>
#include <libfmt.h>

static void
usage(void)
{
    fmt·fprint(2, "usage: date [-un] [seconds]\n");
    exits("usage");
}

int
main(int argc, char *argv[])
{
    int n, u;
    ulong now;

    ARGBEGIN{
    case 'n': n = 1; break;
    case 'u': u = 1; break;
    default: usage();
    }ARGEND;

    if(argc == 1)
        now = strtoul(*argv, 0, 0);
    else
        now = time(0);

    if(n)
        fmt·print("%ld\n", now);
    else if(u)
        fmt·print("%s", asctime(gmtime(now)));
    else
        fmt·print("%s", ctime(now));

    exits(nil);
}