1*1093Sbill static char *sccsid = "@(#)sleep.c 4.1 (Berkeley) 10/01/80"; 2*1093Sbill main(argc, argv) 3*1093Sbill char **argv; 4*1093Sbill { 5*1093Sbill int c, n; 6*1093Sbill char *s; 7*1093Sbill 8*1093Sbill n = 0; 9*1093Sbill if(argc < 2) { 10*1093Sbill printf("arg count\n"); 11*1093Sbill exit(0); 12*1093Sbill } 13*1093Sbill s = argv[1]; 14*1093Sbill while(c = *s++) { 15*1093Sbill if(c<'0' || c>'9') { 16*1093Sbill printf("bad character\n"); 17*1093Sbill exit(0); 18*1093Sbill } 19*1093Sbill n = n*10 + c - '0'; 20*1093Sbill } 21*1093Sbill sleep(n); 22*1093Sbill } 23