1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1988 Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)sleep.c 5.5 (Berkeley) 04/08/91"; 16 #endif /* not lint */ 17 18 #include <unistd.h> 19 #include <stdio.h> 20 #include <stdlib.h> 21 22 main(argc, argv) 23 int argc; 24 char **argv; 25 { 26 int secs; 27 28 if (argc != 2) { 29 (void)fprintf(stderr, "usage: sleep time\n"); 30 exit(1); 31 } 32 if ((secs = atoi(argv[1])) > 0) 33 (void)sleep(secs); 34 exit(0); 35 } 36