usr/src/bin/sleep/sleep.c

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at Berkeley. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1988 Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)sleep.c     5.2 (Berkeley) %G%";
#endif /* not lint */

#include <stdio.h>

main(argc, argv)
        int argc;
        char **argv;
{
        int secs;

        if (argc != 2) {
                fputs("usage: sleep time\n", stderr);
                exit(1);
        }
        if ((secs = atoi(argv[1])) > 0)
                (void)sleep(secs);
        exit(0);
}