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BSD 4.1

static char *sccsid = "@(#)sleep.c	4.1 (Berkeley) 10/1/80";
main(argc, argv)
char **argv;
{
	int c, n;
	char *s;

	n = 0;
	if(argc < 2) {
		printf("arg count\n");
		exit(0);
	}
	s = argv[1];
	while(c = *s++) {
		if(c<'0' || c>'9') {
			printf("bad character\n");
			exit(0);
		}
		n = n*10 + c - '0';
	}
	sleep(n);
}

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